Carrying units through a mathematical operation is sometimes performed.
e. g. to convert 6 feet into metres. From below one foot is exactly 0. 3048 metre. Thus:
This leaves only metres, the desired result.
This works because the numerator and denominator describe the same quantity, the factor is equivalent to the number 1. Therefore, multiplication by this factor does not change the measured quantity, only its units.
The process of making a conversion cannot produce a more precise result than the original quoted figure. Appropriate rounding of results is normally performed after conversion. (See significant figures). The significant figures (also called significant digits and abbreviated sig figs) of a number are those digits that carry meaning contributing to its accuracy
In the above example the 0. 3048 metre per foot is precise by definition, but the precision of the answer is determined by the precision of the 6 ft figure and in many cases the result would need rounding perhaps to 1. 8 m.
Length| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| metre (SI base unit) | m | ≡ 1 m | = 1 m |
| ångström | Å | = 0. Length is the long Dimension of any object The length of a thing is the distance between its ends its linear extent as measured from end to end The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International The International System of Units (SI defines seven dimensionally independent SI base units. An ångström or angstrom (symbol Å) (ˈɔːŋstrəm Swedish: ˈɔ̀ŋstrœm is an internationally recognized non- SI unit of length equal 1 nm | ≡ 1×10−10 m |
| astronomical unit | AU | Mean distance from Earth to the Sun | = 149 597 870 691 ± 30 m |
| atomic unit of length | a0 | ≡ Bohr radius of hydrogen | ≈ 5. The astronomical unit ( AU or au or au or sometimes ua) is a unit of Length based on the distance from the Earth to the Atomic units ( au) form a System of units convenient for Atomic physics, Electromagnetism, and Quantum electrodynamics, especially 29 177 208 59×10−11 ± 3. 6×10−20 m[1] |
| barley corn | | ≡ ⅓ in | = 0. 0846 m |
| Bohr radius | a0; b | ≡ α/4πR∞ | ≈ 5. In the Bohr model of the structure of an Atom, put forward by Niels Bohr in 1913 Electrons orbit a central nucleus. The fine-structure constant or Sommerfeld fine-structure constant, usually denoted \alpha \ is the Fundamental physical constant characterizing The Rydberg Constant, named after the Swedish Physicist Johannes Rydberg, is a Physical constant relating to atomic spectra in the 291 772 083×10−11 ± 19×10−20 m |
| cable length (Imperial) | | ≡ 608 ft | = 185. 3184 m |
| cable length (International) | | ≡ 1/10 nmi | = 185. A cable length or cable's length is a Nautical unit of measure equal to one tenth of a Nautical mile or 100 Fathoms, or sometimes 2 m |
| cable length (U. S. ) | | ≡ 720 ft | = 219. 456 m |
| calibre | cal | ≡ 1 in | = 0. The term caliber or calibre designates the interior Diameter of a tube or the exterior diameter of a wire or rod 0254 m |
| chain (Gunter's; Surveyor's) | ch | ≡ 66. A chain is a unit of Length; it measures 66 feet or 22 yards (20 Edmund Gunter ( 1581 - December 10, 1626) English Mathematician, of Welsh descent was born in Hertfordshire in 1581 0 ft (4 rods) | = 20. 1168 m |
| chain (Ramsden's; Engineer's) | ch | ≡ 100 ft | = 30. A chain is a unit of Length; it measures 66 feet or 22 yards (20 Jesse Ramsden ( October 6, 1735 – November 5, 1800) was an English astronomical and scientific instrument maker 48 m |
| cubit | | ≡ 18 in | = 0. 4572 m |
| ell | ell | ≡ 45 in | = 1. 143 m |
| fathom | fm | ≡ 6 ft | = 1. 8288 m |
| fathom | fm | ≈ 1/1000 nmi | = 1. 852 m |
| fermi | fm | ≡ 1×10−15 m | = 1×10−15 m |
| finger | | ≡ 7/8 in | = 0. 00022225 m |
| finger (cloth) | | ≡ 4 ½ in | = 0. 1143 m |
| foot (Benoît) | ft (Ben) | | ≈ 0. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 304 799 735 m |
| foot (Clarke's; Cape) | ft (Cla) | | ≈ 0. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 304 797 265 4 m |
| foot (Indian) | ft Ind | | ≈ 0. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 304 799 514 m |
| foot (International) | ft | ≡ 12 inches = 1/3 yd | = 0. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 3048 m |
| foot (Sear's) | ft (Sear) | | ≈ 0. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 304 799 47 m |
| foot (U. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit S. Survey) | ft (US) | ≡ 1200/3937 m [2] | ≈ 0. 304 800 610 m |
| french; charriere | F | ≡ 1/3 mm | = 3. The French catheter scale (most correctly abbreviated as Fr but also often abbreviated as FR or F is commonly used to measure the outer diameter of cylindrical medical instruments 3 ×10−4 m |
| furlong | fur | ≡ 10 chains = 660 ft =220 yd | = 201. A furlong is a measure of Distance in Imperial units and US customary units. 168 m |
| geographical mile | | ≡ 6082 ft | = 1853. The geographical mile is a unit of length determined by 1 minute of arc along the Earth 's Equator, approximately equal to 1855 7936 m |
| hand | | ≡ 4 in | = 0. 1016 m |
| inch | in | ≡ 1/36 yd = 1/12 ft | = 0. Inches redirects here To see the Les Savy Fav album see Inches. 0254 m |
| league | lea | ≡ 3 mi | = 4828. A league is a unit of Length or Area long common in Europe and Latin America, although no longer an official unit in any nation 032 m |
| light-day | | ≡ 24 light-hours | = 2. A light day (also written light-day) is a Unit of length. It is defined as the Distance Light travels in an absolute Vacuum in one 590 206 837 12×1013 m |
| light-hour | | ≡ 60 light-minutes | = 1. A light-hour (also written light hour) is a unit of Length. It is the distance travelled by Light in Vacuum in one Hour 079 252 848 8×1012 m |
| light-minute | | ≡ 60 light-seconds | = 1. A light-minute (also written light minute) is a Unit of length. 798 754 748×1010 m |
| light-second | | | ≡ 2. A light-second is a Unit of length. It is defined as the Distance Light travels in an absolute Vacuum in one Second or 299792458 997 924 58×108 m |
| light-year | l. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by y. | ≡ c0 × 86 400 × 365. 25 | = 9. 460 730 472 580 8×1015 m |
| line | ln | ≡ 1/12 in (Klein 1988, 63) | ≈ 0,00 002 116 667 m |
| link (Gunter's; Surveyor's) | lnk | ≡ 1/100 ch | = 0. 201 168 m |
| link (Ramsden's; Engineer's) | lnk | ≡ 1 ft | = 0. 3048 m |
| mickey | | ≡ 1/200 in | = 1. 27×10−4 m |
| micron | µ | | ≡ 1×10−6 m |
| mil; thou | mil | ≡ 1×10−3 in | = 2. A micrometre ( American spelling: micrometer; symbol µm) is one millionth of a Metre, or equivalently one thousandth of a Millimetre MilA thou, also known as a mil, is a unit of Length equal to 0 54×10−5 m |
| mil (Sweden and Norway) | mil | ≡ 10 km | = 10000 m |
| mile | mi | ≡ 1760 yd = 5280 ft | = 1609. A mil ( Norwegian and Swedish for Mile) is a unit of Length, usually used to measure geographic distance fairly common in Norway A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States 344 m |
| mile (U. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States S. Survey) | mi | ≡ 5280 ft (US) | = 5280 × 1200/3937 m ≈ 1609. 347 219 m |
| nail (cloth) | | ≡ 2 ¼ in | = 0. 000 571 5 m |
| nautical league | NL; nl | ≡ 3 nmi | = 5556 m |
| nautical mile(international) | NM; nmi | ≡ 1852 m [3] | 1852 m |
| nautical mile (Admiralty) | NM (Adm); nmi (Adm) | ≡ 6080 ft | ≡ 1853. A nautical mile or sea mile is a unit of Length. It corresponds approximately to one minute of Latitude along any meridian. A nautical mile or sea mile is a unit of Length. It corresponds approximately to one minute of Latitude along any meridian. 184 m |
| pace | | ≡ 2. 5 ft | = 0. 762 m |
| palm | | ≡ 3 in | = 0. 000 762 m |
| parsec | pc | | = 3. History The first direct measurements of an object at interstellar distances were undertaken by German Astronomer Friedrich Wilhelm Bessel in 1838 08567782 ×1016 ± 6×106 m [4] |
| point (ATA) | pt | ≡ 0. 013837 in | = 0. 000 351 459 8 m |
| point (Didot; European) | pt | | ≡ 0. 000 376 065 m |
| point (metric) | pt | ≡ 3/8 mm | = 0. 000 375 m |
| point (PostScript) | pt | ≡ 1/72 in | ≈ 0. PostScript ( PS) is a dynamically typed concatenative Programming language created by John Warnock and Charles Geschke in 1982 000 352 778 m |
| quarter | | ≡ ¼ yd | = 0. 2286 m |
| rod; pole; perch | rd | ≡ 16 ½ ft | = 5. The rod is a unit of Length equal to 55 Yards 11 Cubits 50292 Meters 16 0292 m |
| rope | rope | ≡ 20 ft | = 6. 096 m |
| span | | ≡ 6 in | = 0. 1524 m |
| span (cloth) | | ≡ 9 in | = 0. 2286 m |
| spat[3] | | ≡ 1012 m | = 1×1012 m |
| stick | | ≡ 2 in | = 0. 05 08 m |
| stigma; pm | | ≡ 1×10−12 m | ≡ 1×10−12 m |
| telegraph mile | mi | ≡ 6087 ft | = 1855. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States 3176 m |
| twip | twp | ≡ 1/1440 in | ≈ 1. A twip (derived from TW entieth of an I mperial P oint) is a typographical measurement defined as 1/20 of a typographical point 763 889×10−5 m |
| x unit; siegbahn | xu | | ≈ 1. The X-unit (symbol xu) is a unit of length formerly used to measure the Wavelength of X-rays and Gamma rays. 0021×10−13 m |
| yard (International) | yd | ≡3 ft ≡ 36 in | = 0. A yard (abbreviation yd) is a unit of Length in several different systems including English units Imperial units and United 9144 m[2] |
Area| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| acre | ac | ≡ 10 sq ch = 4840 sq yd | = 4046. Surface area is the measure of how much exposed Area an object has The acre is a unit of Area in a number of different systems including the imperial and U 856 422 4 m² |
| are | a | | ≡ 100 m² |
| barn | b | | ≡ 10−28 m² |
| barony | | ≡ 4000 ac | = 1. Conversions One are is equivalent to Metric 00001 km2 (square kilometres 0 A barn (symbol b) is a unit of Area. While the barn is not an SI unit it is accepted (although discouraged for use with the SI 618 742 568 96×107 m² |
| board | bd | ≡ 1 in × 1 ft | = 7. 741 92×10−3 m² |
| boiler horsepower equivalent direct radiation | bhp EDR | ≡ (1 ft²) (1 bhp) / (240 BTUIT/h) | ≈ 12. 958 174 m² |
| circular inch | circ in | ≡ π/4 sq in | ≈ 5. Inches redirects here To see the Les Savy Fav album see Inches. 067 075×10−4 m² |
| circular mil; circular thou | circ mil | ≡ π/4 mil² | ≈ 5. 067 075×10−10 m² |
| cord | | ≡ 192 bd | = 1. 486 448 64 m² |
| dunam | | ≡ 1000 m² | = 1000 m² |
| hectare | ha | ≡ 10 000 m² | = 10 000 m² |
| hide | | ≡ 100 ac | = 4. A dunam or dönüm, dunum, donum is a unit of Area used in the Ottoman Empire and still used in various standardized versions Explanation The hectare is commonly used in most countries around the world especially in domains concerned with land planning and management such as Agriculture, The hide was a unit used in assessing land for liability to " Geld " or land tax in Anglo-Saxon England from the 7th to the 11th centuries 046 856 422 4×105 m² |
| rood | ro | ≡ ¼ ac | = 1011. 714 105 6 m² |
| shed | | | ≡ 10−52 m² |
| square chain | sq ch | ≡ 1 sq ch | = 404. A shed is a non- SI unit of Area or Cross-section used in Nuclear physics. 685 642 24 m² |
| square foot | sq ft | ≡ 1 ft × 1 ft | = 9. The square foot is an Imperial unit / US customary unit (non- SI non- metric) of Area, used mainly in the United States 290 304×10−2 m² |
| square inch | sq in | ≡ 1 in × 1 in | = 6. A square inch (plural square inches) is a unit of Area, equal to the area of a square with sides of one Inch. 4516×10−4 m² |
| square kilometre | km² | ≡ 1 km² | = 106 m² |
| square link | sq lnk | ≡ 1 lnk² | = 4. Square Kilometre ( US spelling square kilometer) symbol km2, is a decimal multiple of the SI unit of 046 856 422 4×10−2 m² |
| square metre (SI unit) | m² | ≡ 1 m × 1 m | = 1 m² |
| square mil; square thou | sq mil | ≡ 1 mil × 1 mil | = 6. M^2 redirects here For other uses see M². CM2 redirects here The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International 4516×10−10 m² |
| square mile; section | sq mi | ≡ 1 mi × 1 mi | = 2. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States 589 988 110 336×106 m² |
| square rod/pole/perch | sq rd | ≡ 1 sq rd | = 25. 292 852 64 m² |
| square U. S. Survey foot | sq ft | ≡ 1 sq ft (US) | ≈ 9. The foot is an Anatomical structure found in many Animals It is the terminal portion of a limb which bears weight and allows Locomotion. 290 341 161 327 49×10-2 m² |
| square U. S. Survey mile | sq mi | ≡ 1 sq mi (US) | ≈ 2. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States 589 998×106 m² |
| square yard | sq yd | ≡ 1 yd × 1 yd | = 0. The square yard is an imperial / US customary (non- metric) unit of Area, formerly used in most of the English -speaking world but now 836 127 36 m² |
| stremma | | ≡ 1000 m² | = 1000 m² |
| township | | ≡ 36 sq mi (US) | ≈ 9. The stremma ( Greek:στρέμμα plural στρέμματα is a Greek unit of land area equal to 1000 Square metres also called the 'royal' stremma Survey township, sometimes called Congressional township, as used by the United States Public Land Survey System, refers to a square unit of 323 994×107 m² |
| yardland | | ≡ 30 ac | = 1. 214 056 926 72×105 m² |
Volume| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| acre foot | ac ft | ≡ 1 ac x 1 ft = 43560 ft³ | = 1233. The volume of any solid plasma vacuum or theoretical object is how much three- Dimensional space it occupies often quantified numerically An acre-foot is a unit of Volume commonly used in the United States in reference to large-scale water resources such as reservoirs, Aqueducts 481 837 547 52 m³ |
| cubic metre (SI unit) | m³ | ≡ 1 m × 1 m × 1 m | = 1 m³ |
| litre | L | ≡ 1 dm³ [5] | = 0. CM3 redirects here If you were looking for the 3rd game in the Cooking Mama series abbreviated as CM3 see here. The litre or liter (see spelling differences) is a unit of Volume. 001 m³ |
| lambda | λ | ≡ 1 mm³ | = 1 ×10−9 m³ |
| drop (metric) | | ≡ 1/20 mL | = 5 ×10−9 m³ |
| minim (Imperial) | min | ≡ 1/480 fl oz (Imp) = 1/60 fl dr (Imp) | ≈ 5. Lambda (uppercase Λ, lowercase λ; Λάμβδα or el Λάμδα Lamda is the 11th letter of the Greek alphabet. The drop is a Unit of measure of Volume, the amount dispensed as one drop from a dropper. The minim (abbreviated min or ♏) is a unit of Volume in both the imperial and US customary systems of measurement 9 193 880 208 333 ×10−9 m³ |
| minim (U. S. ) | min | ≡ 1/480 US fl oz = 1/60 US fl dr | = 6. 1 611 519 921 875 ×10−9 m³ |
| drop (U. S. ) (alt) | gtt | ≡ 1/456 US fl oz | ≈ 6. 4 854 231 ×10−9 m³ |
| drop (Imperial) (alt) | gtt | ≡ 1/1824 gi (Imp) | ≈ 7. 7 886 684 ×10−9 m³ |
| drop (U. S. ) | gtt | ≡ 1/360 US fl oz | = 8. 2 148 693 229 16 ×10−9 m³ |
| drop (medical) | | ≡ 1/12 mL | = 83 ×10−9 m³ |
| drop (Imperial) | gtt | ≡ 1/288 fl oz (Imp) | = 9. 8 656 467 0138 ×10−9 m³ |
| dash (U. S. ) | | ≡ 1/96 US fl oz = ½ US pinch | = 0. 0308 057 599 609 375 ×10−6 m³ |
| dash (Imperial) | | ≡ 1/384 gi (Imp) = ½ pinch (Imp) | = 0. 0369 961 751 302 083 ×10−6 m³ |
| pinch (U. S. ) | | ≡ 1/48 US fl oz = ⅛ US tsp | = 0. 0616 115 199 218 75 ×10−6 m³ |
| pinch (Imperial) | | ≡ 1/192 gi (Imp) = ⅛ tsp (Imp) | = 0. 0739 923 502 604 16 ×10−6 m³ |
| fluid scruple (Imperial) | fl s | ≡ 1/24 fl oz (Imp) | = 0. 1183 877 604 16 ×10−6 m³ |
| fluid drachm (Imperial) | fl dr | ≡ ⅛ fl oz (Imp) | = 0. The dram (archaic spelling drachm; Apothecary symbol ℨ) was historically both a Coin and a Weight. 3551 632 812 5 ×10−6 m³ |
| fluid dram (U. The dram (archaic spelling drachm; Apothecary symbol ℨ) was historically both a Coin and a Weight. S. ); U. S. fluidram | fl dr | ≡ ⅛ US fl oz | = 0. 3696 691 195 312 5 ×10−6 m³ |
| teaspoon (Canadian) | tsp | ≡ 1/6 fl oz (Imp) | ≈ 0. A teaspoon is a small Spoon, or a spoon used in measuring commonly used to stir the contents of a cup of Tea or Coffee. 4735 510 416 667 ×10−6 m³ |
| teaspoon (U. S. ) | tsp | ≡ 1/6 US fl oz | = 0. 4928 921 595 ×10−6 m³ |
| teaspoon (metric) | | | ≡ 0. 5 ×10−6 m³ |
| teaspoon (Imperial) | tsp | ≡ 1/24 gi (Imp) | = 0. 5919 388 020 83 ×10−6 m³ |
| dessertspoon (Imperial) | | ≡ 1/12 gi (Imp) | = 1. A dessert spoon is a spoon designed specifically for eating dessert 1838 776 0416 ×10−6 m³ |
| tablespoon (Canadian) | tbsp | ≡ ½ fl oz (Imp) | = 1. A tablespoon is a type of Spoon used for serving Measure of volume It is also a measure of Volume used in cooking 4206 531 25 ×10−6 m³ |
| tablespoon (U. S. ) | tbsp | ≡ ½ US fl oz | = 1. 4786 764 782 5 ×10−6 m³ |
| tablespoon (metric) | | | ≡ 1. 5 ×10−6 m³ |
| cubic inch | cu in | ≡ 1 in × 1 in × 1 in | = 1. Inches redirects here To see the Les Savy Fav album see Inches. 6387 064 ×10−5 m³ |
| tablespoon (Imperial) | tbsp | ≡ 5/8 fl oz (Imp) | = 1. 7758 164 0625 ×10−6 m³ |
| pony | | ≡ 3/4 US fl oz | = 2. 218 014 717 187 5 ×10−6 m³ |
| fluid ounce (Imperial) | fl oz (Imp) | ≡ 1/160 gal (Imp) | = 2. A fluid ounce (abbreviated fl oz, fl oz or oz fl) is a unit of Volume in both the imperial and the US customary systems 8413 062 5 ×10−6 m³ |
| fluid ounce (U. S. ) | US fl oz | ≡ 1/128 gal (US) | = 2. 9573 529 5625 ×10−6 m³ |
| shot | | ≡ 1 US fl oz | = 2. 9573 529 5625 ×10−6 m³ |
| jigger | | ≡ 1½ US fl oz | = 4. 4360 294 343 75 ×10−6 m³ |
| gill (U. A gill is an anatomical structure found in many aquatic organisms S. ) | gi (US) | ≡ 4 US fl oz | = 11. 8294 118 25 ×10−6 m³ |
| gill (Imperial); Noggin | gi (Imp); nog | ≡ 5 fl oz (Imp) | = 14. 2065 312 5 ×10−6 m³ |
| cup (Canadian) | c (CA) | ≡ 8 fl oz (Imp) | = 22. The cup is a unit of measurement for volume used in cooking to measure bulk foods such as Granulated sugar (dry measurement and liquids ( Fluid measurement 73045 ×10−6 m³ |
| cup (U. S. ) | c (US) | ≡ 8 US fl oz ≡ 1/16 gal (US) | = 23. 6588 2365 ×10−6 m³ |
| cup (metric) | c | | ≡ 25. 0 ×10−6 m³ |
| breakfast cup | | ≡ 10 fl oz (Imp) | = 28. 4130 625 ×10−6 m³ |
| pint (U. The pint is an English unit of Volume or capacity in the imperial system and United States customary units. S. fluid) | pt (US fl) | ≡ ⅛ gal (US) | = 47. 3176 473 ×10−6 m³ |
| pint (U. S. dry) | pt (US dry) | ≡ 1/64 bu (US lvl) ≡ ⅛ gal (US dry) | = 0. 000 550 610 471 3575 m³ |
| pint (Imperial) | pt (Imp) | ≡ ⅛ gal (Imp) | = 0. 000 568 261 25 m³ |
| fifth | | ≡ 1/5 US gal | = 0. 000 757 082 356 8 m³ |
| quart (U. The quart is an imperial and US customary unit of Volume equal to a quarter of a Gallon. S. fluid) | qt (US) | ≡ ¼ gal (US fl) | = 0. 000 946 352 946 m³ |
| quart (U. S. dry) | qt (US) | ≡ 1/32 bu (US lvl) = ¼ gal (US dry) | = 0. 001 101 220 942 715 m³ |
| quart (Imperial) | qt (Imp) | ≡ ¼ gal (Imp) | = 0. 001 136 522 5 m³ |
| pottle; quartern | | ≡ ½ gal (Imp) = 80 fl oz (Imp) | = 0. 002 273 045 m³ |
| board-foot | fbm | ≡ 144 cu in | = 0. The board-foot is a specialized unit of Volume for measuring Lumber in the United States and Canada. 002 359 737 216 m³ |
| gallon (U. A gallon is a measure of Volume. It is in current use in the United States and still has limited use in many other English-speaking countries S. fluid; Wine) | gal (US) | ≡ 231 cu in | = 0. 003 785 411 784 m³ |
| gallon (U. S. dry) | gal (US) | ≡ ⅛ bu (US lvl) | = 0. 004 404 883 770 86 m³ |
| gallon (Imperial) | gal (Imp) | ≡ | = 0. 004 546 09 m³ |
| beer gallon | beer gal | ≡ 282 cu in | = 0. 004 621 152 048 m³ |
| peck (U. A peck is an imperial and US customary unit of dry volume, equivalent in each of these systems to 8 dry Quarts or 16 dry Pints Two S. dry) | pk | ≡ ¼ US lvl bu | = 0. 008 809 767 541 72 m³ |
| peck (Imperial) | pk | ≡ 2 gal (Imp) | = 0. A peck is an imperial and US customary unit of dry volume, equivalent in each of these systems to 8 dry Quarts or 16 dry Pints Two 009 092 18 m³ |
| bucket (Imperial) | bkt | ≡ 4 gal (Imp) | = 0. A bucket (bkt was an Imperial unit of liquid Volume, equivalent to four Gallons or 18 018 184 36 m³ |
| timber foot | | ≡ 1 cu ft | = 0. 028 316 846 592 m³ |
| cubic foot | cu ft | ≡ 1 ft × 1 ft × 1 ft | = 0. The cubic foot is an imperial and US customary (non- metric) unit of Volume, used in the United States Canada and the United Kingdom 028 316 846 592 m³ |
| firkin | | ≡ 9 gal (US) | = 0. A Firkin is an old English unit of volume The name is derived from the Middle Dutch word vierdekijn which means 034 068 706 056 m³ |
| bushel (U. A bushel is a unit of dry volume, usually subdivided into eight local Gallons in the systems of Imperial units and U S. dry level) | bu (US lvl) | ≡ 2150. 42 cu in | = 0. 035 239 070 166 88 m³ |
| bushel (Imperial) | bu (Imp) | ≡ 8 gal (Imp) | = 0. 036 368 72 m³ |
| bushel (U. S. dry heaped) | bu (US) | ≡ 1 ¼ bu (US lvl) | = 0. 044 048 837 708 6 m³ |
| strike (U. S. ) | | ≡ 2 bu (US lvl) | = 0. 070 478 140 333 76 m³ |
| strike (Imperial) | | ≡ 2 bu (Imp) | = 0. 072 737 44 m³ |
| kilderkin | | ≡ 18 gal (Imp) | = 0. The kilderkin is an old English unit of volume equal to half a barrel or two firkins 081 829 62 m³ |
| sack (U. S. ) | | ≡ 3 bu (US lvl) | = 0. 105 717 210 500 64 m³ |
| sack (Imperial); bag | | ≡ 3 bu (Imp) | = 0. 109 106 16 m³ |
| barrel (U. S. dry) | bl (US) | ≡ 105 qt (US) = 105/32 bu (US lvl) | = 0. 115 628 198 985 075 m³ |
| barrel (U. S. fluid) | fl bl (US) | ≡ 31½ gal (US) | = 0. 119 240 471 196 m³ |
| coomb | | ≡ 4 bu (Imp) | = 0. 145 474 88 m³ |
| barrel (petroleum) | bl; bbl | ≡ 42 gal (US) | = 0. 158 987 294 928 m³ |
| barrel (Imperial) | bl (Imp) | ≡ 36 gal (Imp) | = 0. 163 659 24 m³ |
| hogshead (U. A hogshead is a large cask of liquid (less often of a food commodity) S. ) | hhd (US) | ≡ 2 fl bl (US) | = 0. 238 480 942 392 m³ |
| seam | | ≡ 8 bu (US lvl) | = 0. 281 912 561 335 04 m³ |
| quarter; pail | | ≡ 8 bu (Imp) | = 0. A bucket, also called a pail, is a watertight vertical Cylinder or truncated cone, with an open top and a flat bottom usually attached 290 949 76 m³ |
| hogshead (Imperial) | hhd (Imp) | ≡ 2 bl (Imp) | = 0. 327 318 48 m³ |
| cord-foot | | ≡ 16 cu ft | = 0. 453 069 545 472 m³ |
| butt, pipe | | ≡ 126 gal (wine) | = 0. The butt (from the Medieval French and Italian botte) or pipe is an old English unit of Wine casks holding two Hogsheads 476 961 884 784 m³ |
| perch | per | ≡ 16½ ft × 1½ ft × 1 ft | = 0. Perca is the genus of fish referred to as perch or sometimes yellow perch, a group of freshwater Fish belonging to the family Percidae 700 841 953 152 m³ |
| cubic yard | cu yd | ≡ 27 cu ft | = 0. A yard (abbreviation yd) is a unit of Length in several different systems including English units Imperial units and United 764 554 857 984 m³ |
| tun | | ≡ 252 gal (wine) | = 0. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United 953 923 769 568 m³ |
| displacement ton | | ≡ 35 cu ft | = 0. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United 991 089 630 72 m³ |
| water ton | | ≡ 28 bu (Imp) | = 1. 018 324 16 m³ |
| freight ton | | ≡ 40 cu ft | = 1. 132 673 863 68 m³ |
| wey (U. A wey is a unit of Mass used in England since before 900 CE The value of a wey has varied over time though was originally used to denote 2 Hundredweight S. ) | | ≡ 40 bu (US lvl) | = 1. 409 562 806 675 2 m³ |
| load | | ≡ 50 cu ft | = 1. 415 842 329 6 m³ |
| register ton | | ≡ 100 cu ft | = 2. 831 684 659 2 m³ |
| last | | ≡ 80 bu (Imp) | = 2. A last is the Form used in Shoemaking to shape a Shoe in the rough form of a human Foot. 909 497 6 m³ |
| cord (firewood) | | ≡ 8 ft × 4 ft × 4 ft | = 3. 624 556 363 776 m³ |
| cubic fathom | cu fm | ≡ 1 fm × 1 fm × 1 fm | = 6. A fathom is a unit of Length in the Imperial system (and the derived U 116 438 863 872 m³ |
| acre-inch | | ≡ 1 ac × 1 in | = 102. 790 153 128 96 m³ |
| cubic mile | cu mi | ≡ 1 mi × 1 mi × 1 mi | = 4,168,181,825. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States 440 579 584 m³ |
Angle| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| radian (SI unit) | rad | ≡ 180°/π | 1 rad |
| centesimal second of arc | " | ≡ 1 grad/10000 | ≈ 1. In Geometry and Trigonometry, an angle (in full plane angle) is the figure formed by two rays sharing a common Endpoint, called The radian is a unit of plane Angle, equal to 180/ π degrees, or about 57 A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. 57 079 6×10−6 rad |
| arcsecond | " | ≡ 1°/3600 | ≈ 4. A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. 84 813 7×10−6 rad |
| centesimal minute of arc | ' | ≡ 1 grad/100 | ≈ 15. A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. 708 0×10−6 rad |
| minute of arc | ' | ≡ 1°/60 | ≈ 29. A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. 088 8×10−6 rad |
| angular mil | µ | ≡ 2π/6400 rad | ≈ 9. An angular mil, also mil, is a unit of Angle. Origin of the name All versions of the angular mil are approximately the same size as a 8174 8×10−4 rad |
| grad; gradian; gon | grad | ≡ 2π/400 rad = 0. The grad is a unit of plane Angle, equivalent to of a full Circle, dividing a Right angle in 100 The grad is a unit of plane Angle, equivalent to of a full Circle, dividing a Right angle in 100 9° | ≈ 1. 570 796 3×10−3 rad |
| degree (of arc) | ° | ≡ π/180 rad | ≈ 1. This article describes the unit of angle For other meanings see Degree. 745 329 3×10−3 rad |
| sign | | ≡ 30° | ≈ 0. 523 599 rad |
| octant | | ≡ 45° | ≈ 0. An octant is one of eight divisions Octant in the plane An octant is one of 8 parts of the two-dimensional Euclidean coordinate system 785 398 rad |
| sextant | | ≡ 60° | ≈ 1. 047 198 rad |
| quadrant | | ≡ 90° | ≈ 1. 570 796 rad |
Mass| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| kilogram, grave(SI base unit) | kg; G | | = 1kg |
| electron rest mass | me | | ≈ 9. The solid angle, Ω, is the angle in three-dimensional space that an object Subtends at a point The steradian (symbol sr) is the SI unit of Solid angle. It is used to describe two-dimensional angular spans in three- Dimensional space SI derived units are part of the SI system of measurement units and are derived from the seven SI base units They are derived from SI basic units/defined In the Physical sciences weight is a Measurement of the gravitational Force acting on an object Mass is a fundamental concept in Physics, roughly corresponding to the Intuitive idea of how much Matter there is in an object A grave is a metallic reference standard of one thousand Grams that was used for a few years until it was replaced by the Kilogram standard in 1799 The International System of Units (SI defines seven dimensionally independent SI base units. The electron is a fundamental Subatomic particle that was identified and assigned the negative charge in 1897 by J 109 381 88×10−31 ± 72×10−39 kg |
| atomic unit of mass | amu | ≡ me | ≈ 9. Atomic units ( au) form a System of units convenient for Atomic physics, Electromagnetism, and Quantum electrodynamics, especially 109 381 88×10−31 ± 72×10−39 kg |
| unified atomic mass unit | u | | ≈ 1. The unified atomic mass unit ( u) or Dalton ( Da) or sometimes universal mass unit, is an unit of Mass used to express 660 538 73×10−27 ± 13×10−35 kg |
| dalton | Da | | ≈ 1. The unified atomic mass unit ( u) or Dalton ( Da) or sometimes universal mass unit, is an unit of Mass used to express 660 902 10×10−27 ± 13×10−35 kg |
| gamma | γ | | ≡ 1 ×10-6 kg |
| point | | ≡ 1/100 kt (metric) | = 2 ×10-6 kg |
| mite | | ≡ 1/20 gr | = 3. 239 945 5 ×10-6 kg |
| mite (metric) | | ≡ 1/20 g | = 50 ×10-6 kg |
| grain | gr | | ≡ 64. In many cultures a grain is a unit of measurement of Mass that is based upon the mass of a single seed of a typical Cereal. 798 91 ×10-6 kg |
| crith | | | ≈ 89. Chris Eubank (born Christopher Livingstone Eubanks on August 8 1966) is a retired boxer and English celebrity who held the WBO Middleweight 9349 ×10-6 kg |
| carat (metric) | ct | | ≡ 200 ×10-6 kg |
| carat | kt | ≡ 3 1/6 gr | ≈ 205. The carat is a unit of Mass used for measuring gems and Pearls Currently a carat is defined as exactly 200 mg (0 The carat is a unit of Mass used for measuring gems and Pearls Currently a carat is defined as exactly 200 mg (0 196 548 333 ×10-6 kg |
| sheet | | ≡ 1/700 lb av | = 647. 9891 ×10-6 kg |
| scruple (apothecary) | s ap | ≡ 20 gr | = 1. 295 978 2 ×10-3 kg |
| pennyweight | dwt; pwt | ≡ 1/20 oz t | = 1. A pennyweight (dwt is a unit of Mass which is the same as 24 grains, 1/240th of a Troy pound, 1/20th of a Troy ounce, approximately 0 555 173 84 ×10-3 kg |
| dram (avoirdupois) | dr av | ≡ 27 11/32 gr | = 1. The avoirdupois (ˌævərdəˈpɔɪz French avwaʀdypwɑ system is a system of weights (or properly Mass) based on a pound of sixteen Ounces 771 845 195 312 5 ×10-3 kg |
| dram (apothecary; troy) | dr t | ≡ 60 gr | = 3. The dram (archaic spelling drachm; Apothecary symbol ℨ) was historically both a Coin and a Weight. Troy weight is a system of units of Mass customarily used for Precious metals Black powder, and Gemstones Named after Troyes 887 934 6 ×10-3 kg |
| hyl (CGS unit) | | ≡ 1 gee × 1 g × 1 s²/m | = 9. In the gravitational metric system(s the base unit of force is not normalised to one mass unit ( Gram or Kilogram) times one length unit ( Metre or centimetre 806 65 ×10-3 kg |
| ounce (avoirdupois) | oz av | ≡ 1/16 lb | = 28. This article is about the unit of mass For the unit of force see Pound-force. 349 523 125 ×10-3 kg |
| assay ton (short) | AT | ≡ 1 mg × 1 sh tn ÷ 1 oz t | ≈ 29. 166 667 ×10-3 kg |
| ounce (apothecary; troy) | oz t | ≡ 1/12 lb t | = 31. Troy weight is a system of units of Mass customarily used for Precious metals Black powder, and Gemstones Named after Troyes 103 476 8 ×10-3 kg |
| assay ton (long) | AT | ≡ 1 mg × 1 long tn ÷ 1 oz t | ≈ 32. 666 667 ×10-3 kg |
| mark | | ≡ 8 oz t | = 248. 827 814 4 ×10-3 kg |
| pound (troy) | lb t | ≡ 5760 grains | = 0. The pound or pound-mass (abbreviation lb, lbm, or sometimes in the United States #) is a unit of Mass 373 241 721 6 kg |
| pound (avoirdupois) | lb av | ≡ 7000 grains | = 0. The pound or pound-mass (abbreviation lb, lbm, or sometimes in the United States #) is a unit of Mass 453 592 37 kg |
| pound (metric) | | | ≡ 0. The pound or pound-mass (abbreviation lb, lbm, or sometimes in the United States #) is a unit of Mass 5 kg |
| clove | | ≡ 8 lb av | = 3. 628 738 96 kg |
| stone | st | ≡ 14 lb av | = 6. The stone is a unit of Weight. It is part of the Imperial system of weights and measures used in the British Isles, and formerly used in most 350 293 18 kg |
| hyl (MKS unit) | | ≡ 1 gee × 1 kg × 1 s²/m | = 9. In the gravitational metric system(s the base unit of force is not normalised to one mass unit ( Gram or Kilogram) times one length unit ( Metre or centimetre 806 65 kg |
| quarter (Imperial) | | ≡ 1/4 long cwt = 2 st = 28 lb av | = 12. 700 586 36 kg |
| slug; geepound | slug | ≡ 1 gee × 1 lb av × 1 s²/ft | ≈ 14. 593 903 kg |
| bag (Portland cement) | | ≡ 94 lb av | = 42. Portland cement is the most common type of Cement in general usage in many parts of the world as it is a basic ingredient of Concrete, mortar, Stucco 637 682 78 kg |
| short hundredweight; cental | sh cwt | ≡ 100 lb av | = 45. Hundred weight or hundredweight is a Unit of measurement for Mass in U 359 237 kg |
| long hundredweight | long cwt or cwt | ≡ 112 lb av | = 50. Hundred weight or hundredweight is a Unit of measurement for Mass in U 802 345 44 kg |
| bag (coffee) | | ≡ 60 kg | = 60 kg |
| quintal (metric) | q | | ≡ 100 kg |
| wey | | ≡ 252 lb = 18 st (variants exist) | = 114. CoFFEE is an Open source Software for computer supported collaborative learning (CSCL in a digital classroom The quintal or centner is a historical unit of Mass with many different definitions in different countries but usually it is 100 base units of mass e A wey is a unit of Mass used in England since before 900 CE The value of a wey has varied over time though was originally used to denote 2 Hundredweight 305 277 24 kg |
| long quarter (informal) | | ≡ ¼ long tn | = 254. 011 727 2 kg |
| quarter (informal) | | ≡ ¼ short tn | = 226. 796 185 kg |
| kip | kip | ≡ 1000 lb av | = 453. In the United States a kip is a unit of Force that equals 1000 pounds-force, used primarily by architects and engineers of mayapur to measure engineering loads 592 37 kg |
| short ton | sh tn | ≡ 2000 lb | = 907. The short ton ( S/T) is a unit of mass equal to 2000 lb (around 907 184 74 kg |
| tonne (mts unit) | t | | ≡ 1000 kg |
| long ton | long tn or ton | ≡ 2240 lb | = 1016. This article is about the tonne or metric ton For other tons see Ton. The metre-tonne-second or mts system of units is a system of Physical units It was invented in France hence the unit names sthène and pièze 046 908 8 kg |
| barge | | ≡ 22 ½ sh tn | = 20,411. 656 65 kg |
| Zentner | Ztr. | Definitions vary; see [6] and [7]. See also discussion at Talk:Conversion of units#Zentner | |
Time, t| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| second (SI base unit) | s | | = 1 s |
| Planck time | | ≡ (Gℏ/c5)½ | ≈ 1. For other uses see Time (disambiguation Time is a component of a measuring system used to sequence events to compare the durations of The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units The International System of Units (SI defines seven dimensionally independent SI base units. In Physics, the Planck time ( tP) is the unit of Time in the system of Natural units known as Planck units. The gravitational constant, denoted G, is a Physical constant involved in the calculation of the gravitational attraction between objects with mass The Planck constant (denoted h\ is a Physical constant used to describe the sizes of quanta. 351 211 818×10−43 s |
| atomic unit of time | au | ≡ a0/(α·c) | ≈ 2. Atomic units ( au) form a System of units convenient for Atomic physics, Electromagnetism, and Quantum electrodynamics, especially In the Bohr model of the structure of an Atom, put forward by Niels Bohr in 1913 Electrons orbit a central nucleus. The fine-structure constant or Sommerfeld fine-structure constant, usually denoted \alpha \ is the Fundamental physical constant characterizing 418 884 254×10−17 s |
| svedberg | S | ≡ 10−13 s | = 100×10-13 s |
| shake | | ≡ 10−8 s | = 10×10-8 s |
| sigma | | ≡ 10−6 s | = 10×10-6 s |
| jiffy | | ≡ 1/60 s | ≈ . A svedberg (symbol S, sometimes Sv, not to be confused with Sv for the SI unit Sievert as well as the non-SI Sverdrup) is a non- 016667 s |
| jiffy (alternate) | | ≡ 1/100 s | = 10 ms |
| helek | | ≡ 1/1080 h | ≈ 3. The helek ( Hebrew, meaning "portion" plural halakim) is a unit of Time used in the calculation of the Hebrew calendar. 333333 s |
| minute | min | | ≡ 60 s |
| milliday | md | ≡ 86 400 s / 1000 | ≡ 86. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 Metric time is the measure of time interval using the Metric system, which defines the Second as the base unit of time and multiple and submultiple units formed with 4 s |
| moment | | ≡ 90 s | ≡ 90 s |
| ke(traditional) | | ≡ 1/100 d | ≡ 864 s |
| quarter (of an hour) | ke | ≡ 1/96 d | ≡ 900 s |
| hour | h | ≡ 60 min | = 3600 s |
| day | d | ≡ 24 h | = 86 400 s |
| week | wk | ≡ 7 d | = 604 800 s |
| fortnight | | ≡ 2 wk | = 1 209 600 s |
| month (hollow) | mo | ≡ 29 d | = 2 505 600 s |
| month | mo | ≡ 30 d | = 2 592 000 s |
| month (full) | mo | ≡ 31 d | = 2 678 400 s |
| year (Calendar) | a, y, or yr | ≡ 365 d | = 31 536 000 s |
| year (Gregorian) | a, y, or yr | ≡ 365. The ke (刻 Pinyin: kè) is a traditional Chinese unit of Decimal time lasting approximately a quarter of a western Hour. The ke (刻 Pinyin: kè) is a traditional Chinese unit of Decimal time lasting approximately a quarter of a western Hour. The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI A day (symbol d is a unit of Time equivalent to 24 Hours and the duration of a single Rotation of planet Earth with respect to the A week (also called sennight or sevennight) is a unit of Time longer than a Day and shorter than a Month. Note Please link only to revelant articles per "WPOVERLINK" The month is a unit of Time, used with Calendars which is approximately as long as some natural period related to the motion of the Moon; The month is a unit of Time, used with Calendars which is approximately as long as some natural period related to the motion of the Moon; The month is a unit of Time, used with Calendars which is approximately as long as some natural period related to the motion of the Moon; A year (from Old English gēr) is the time between two recurrences of an event related to the Orbit of the Earth around the Sun A year (from Old English gēr) is the time between two recurrences of an event related to the Orbit of the Earth around the Sun 2425 d | = 31 556 952 s |
| year (Julian) | a, y, or yr | ≡ 365. A year (from Old English gēr) is the time between two recurrences of an event related to the Orbit of the Earth around the Sun 25 d | = 31 557 600 s |
| sidereal year | a, y, or yr | ≡ 365. The sidereal year is the time taken for the Sun to return to the same position with respect to the Stars of the Celestial sphere. 256363 d | = 31 558 149. 76 s |
| Olympiad | | ≡ 4 a of 365 d | = 1. An Olympiad is a period of four years associated with the Olympic Games of Classical Greece. 2614×108 s |
| lustre; lustrum | | ≡ 5 a of 365 d | = 1. 5768×108 s |
| octaeteris | | ≡ 8 a of 365 d | = 2. In Astronomy, an octaeteris (plural octaeterides) is the period of eight Solar years after which the Moon phase occurs on the same day of 522 88×108 s |
| decade | | ≡ 10 a of 365 d | = 3. A decade is a period of 10 Years (since 1594 a factor of 10 difference between two numbers, or sometimes a set or a group of ten (since 1451 1536×108 s |
| enneadecaeteris; Metonic cycle | | ≡ 110 mo (hollow) + 125 mo (full) = 19 a of 365 d | = 5. Metonic cycle or Enneadecaeteris in Astronomy and Calendar studies is a particular approximate common multiple of the Tropical year Metonic cycle or Enneadecaeteris in Astronomy and Calendar studies is a particular approximate common multiple of the Tropical year 996 16×108 s |
| Callippic cycle | | ≡ 441 mo (hollow) + 499 mo (full) = 76 a of 365. In Astronomy and Calendar studies the Callippic cycle (or Calippic is a particular approximate common multiple of the Year (specifically the 25 d | = 2. 398 377 6×109 s |
| century (Calendar) | | ≡ 100 a of 365 d | = 3. A century (from the Latin centum, meaning one hundred is One hundred consecutive Years Centuries are numbered ordinally (e 1536×109 s |
| century (Julian) | | ≡ 100 a of 365. A century (from the Latin centum, meaning one hundred is One hundred consecutive Years Centuries are numbered ordinally (e 25 d | = 3. 155 76×109 s |
| Hipparchic cycle | | ≡ 4 Callippic cycles - 1 d | = 9. The Greek astronomer Hipparchus introduced two cycles that have been named after him in later literature 593 424×109 s |
| millennium (Calendar) | | ≡ 1000 a of 365 d | = 3. A millennium (pl millennia) is a period of Time equal to one thousand Years (from Latin la mille, thousand and la annum 1536×1010 s |
| millennium (Gregorian) | | ≡ 1000 a of 365. A millennium (pl millennia) is a period of Time equal to one thousand Years (from Latin la mille, thousand and la annum 2425 d | = 3. 155 695 2×1010 s |
| millennium (Julian) | | ≡ 1000 a of 365. A millennium (pl millennia) is a period of Time equal to one thousand Years (from Latin la mille, thousand and la annum 25 d | = 3. 155 76×1010 s |
| Sothic cycle | | ≡ 1461 a of 365 d | = 4. The Sothic cycle or Canicular period is a period of 1461 Ancient Egyptian years (of 365 days each or 1460 Julian years (averaging 365 607 409 6×1010 s |
Speed| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| metre per second (SI unit) | m/s | | ≡ 1 m/s |
| foot per hour | fph | ≡ 1 ft/h | ≈ 8. Speed is the rate of motion, or equivalently the rate of change in position often expressed as Distance d traveled per unit of A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI 466 667×10−5 m/s |
| furlong per fortnight | | ≡ furlong/fortnight | ≈ 1. A furlong is a measure of Distance in Imperial units and US customary units. Note Please link only to revelant articles per "WPOVERLINK" 663 095×10−4 m/s |
| inch per minute | ipm | ≡ 1 in/min | ≈ 4. Inches redirects here To see the Les Savy Fav album see Inches. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 23 333×10−4 m/s |
| foot per minute | fpm | ≡ 1 ft/min | = 5. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 08×10−3 m/s |
| inch per second | ips | ≡ 1 in/s | = 2. Inches redirects here To see the Les Savy Fav album see Inches. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 54×10−2 m/s |
| kilometre per hour | km/h | ≡ 1 km/h | ≈ 2. (For the South African airport with IATA code "KMH" see Johan Pienaar Airport. 777 778×10−2 m/s |
| foot per second | fps | ≡ 1 ft/s | = 3. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 048×10−1 m/s |
| mile per hour | mph | ≡ 1 mi/h | = 0. 447 04 m/s |
| knot | kn | ≡ 1 NM/h = 1. A nautical mile or sea mile is a unit of Length. It corresponds approximately to one minute of Latitude along any meridian. 852 km/h | ≈ 0. 514 444 m/s |
| knot (Admiralty) | kn | ≡ 1 NM (Adm)/h = 1. 853 184 km/h | ≈ 0. 514 773 m/s |
| mile per minute | mpm | ≡ 1 mi/min | = 26. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 8224 m/s |
| mile per second | mps | ≡ 1 mi/s = 1. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 609 344 km/s | = 1609. 344 m/s |
| speed of light in vacuum | c | ≡ 2. 997 924 58×108 m/s | = 2. 997 924 58×108 m/s |
| speed of sound in air | s | ≡ 770 mph = 1230 km/h | ≈ 344 m/s |
| mach | M | ≡ 331 m/s | ≈ 331 m/s |
Acceleration| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| metre per second squared (SI unit) | m/s² | ≡ 1 m/s² | = 1 m/s² |
| foot per hour per second | fph/s | ≡ 1 ft/(h·s) | ≈ 8. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 466 667×10−5 m/s² |
| inch per minute per second | ipm/s | ≡ 1 in/(min·s) | ≈ 4. Inches redirects here To see the Les Savy Fav album see Inches. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 233 333×10−4 m/s² |
| foot per minute per second | fpm/s | ≡ 1 ft/(min·s) | = 5. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 08×10−3 m/s² |
| galileo | Gal | ≡ 1 cm/s² | = 10−2 m/s² |
| inch per second squared | ips² | ≡ 1 in/s² | = 2. Inches redirects here To see the Les Savy Fav album see Inches. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 54×10−2 m/s² |
| foot per second squared | fps² | ≡ 1 ft/s² | = 3. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 048×10−1 m/s² |
| mile per hour per second | mph/s | ≡ 1 mi/(h·s) | = 4. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 4704×10−1 m/s² |
| knot per second | kn/s | ≡ 1 kn/s | ≈ 5. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 144 444×10−1 m/s² |
| standard gravity | g | | ≡ 9. Gravitation is a natural Phenomenon by which objects with Mass attract one another 806 65 m/s² |
| mile per minute per second | mpm/s | ≡ 1 mi/(min·s) | = 26. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 8224 m/s² |
| mile per second squared | mps² | ≡ 1 mi/s² | = 1. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 609 344×103 m/s² |
Force| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| newton (SI unit) | N | ≡ kg·m/s² | = 1 N |
| atomic unit of force | au | ≡ me·α²·c²/a0 | ≈ 8. In Physics, a force is whatever can cause an object with Mass to Accelerate. The newton (symbol N) is the SI derived unit of Force, named after Isaac Newton in recognition of his work on Classical Atomic units ( au) form a System of units convenient for Atomic physics, Electromagnetism, and Quantum electrodynamics, especially The fine-structure constant or Sommerfeld fine-structure constant, usually denoted \alpha \ is the Fundamental physical constant characterizing In the Bohr model of the structure of an Atom, put forward by Niels Bohr in 1913 Electrons orbit a central nucleus. 238 722 241×10−8 N |
| dyne (cgs unit) | dyn | ≡ g·cm/s² | = 10−5 N |
| milligrave-force, gravet-force | mGf; gf | ≡ g × 1 g | = 9. The centimetre-gram-second system ( CGS) is a system of physical units. A grave is a metallic reference standard of one thousand Grams that was used for a few years until it was replaced by the Kilogram standard in 1799 Standard gravity, usually denoted by g 0 or g n is the nominal acceleration due to gravity at the Earth's surface at sea level 806 65 mN |
| poundal | pdl | ≡ 1 lb·ft/s² | = 0. The poundal is a non- SI unit of Force. It is a part of the Foot-pound-second system of units a coherent subsystem of English units introduced 138 254 954 376 N |
| ounce-force | ozf | ≡ g × 1 oz | = 0. 278 013 850 953 781 2 N |
| pound-force | lbf | ≡ g × 1 lb | = 4. This article deals with the unit of force For the unit of mass see Pound (mass. This article deals with the unit of force For the unit of mass see Pound (mass. 448 221 615 260 5 N |
| kilogram-force; kilopond; grave-force | kgf; kp; Gf | ≡ g × 1 kg | = 9. The unit kilogram-force ( kgf, often incorrectly just kg) or kilopond ( kp) is defined as the Force exerted by Earth's gravity A grave is a metallic reference standard of one thousand Grams that was used for a few years until it was replaced by the Kilogram standard in 1799 806 65 N |
| sthene (mts unit) | sn | ≡ 1 t·m/s² | = 1 ×10−3 N |
| kip; kip-force | kip; kipf; klbf | ≡ g × 1000 lb | = 4. The metre-tonne-second or mts system of units is a system of Physical units It was invented in France hence the unit names sthène and pièze In the United States a kip is a unit of Force that equals 1000 pounds-force, used primarily by architects and engineers of mayapur to measure engineering loads 448 221 615 260 5 ×103 N |
| ton-force | tnf | ≡ g × 1 sh tn | = 8. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United 896 443 230 521 ×103 N |
Pressure| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| atmosphere (standard) | atm | | ≡ 101 325 Pa [8] |
| atmosphere (technical) | at | ≡ 1 kgf/cm² | = 98. In the Physical sciences weight is a Measurement of the gravitational Force acting on an object Pressure (symbol 'p' is the force per unit Area applied to an object in a direction perpendicular to the surface 0665 ×10−3 Pa [8] |
| bar | bar | | ≡ 105 Pa |
| barye (cgs unit) | | ≡ 1 dyn/cm² | = 0. The bar (symbol bar) decibar (symbol dbar) and the millibar (symbol mbar, also mb are units of Pressure. The centimetre-gram-second system ( CGS) is a system of physical units. 1 Pa |
| centimetre of mercury | cmHg | ≡ 13 595. 1 kg/m³ × 1 cm × g | ≈ 1. 333 22 ×10−3 Pa [8] |
| centimetre of water (4 °C) | cmH2O | ≈ 999. Water is a common Chemical substance that is essential for the survival of all known forms of Life. 972 kg/m³ × 1 cm × g | ≈ 98. 0638 Pa [8] |
| foot of mercury (conventional) | ftHg | ≡ 13 595. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 1 kg/m³ × 1 ft × g | ≈ 40. 636 66 ×10−3 Pa [8] |
| foot of water (39. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit Water is a common Chemical substance that is essential for the survival of all known forms of Life. 2 °F) | ftH2O | ≈ 999. 972 kg/m³ × 1 ft × g | ≈ 2. 988 98 ×10−3 Pa [8] |
| inch of mercury (conventional) | inHg | ≡ 13 595. Inches redirects here To see the Les Savy Fav album see Inches. 1 kg/m³ × 1 in × g | ≈ 3. 386 389 ×10−3 Pa [8] |
| inch of water (39. Inches redirects here To see the Les Savy Fav album see Inches. Water is a common Chemical substance that is essential for the survival of all known forms of Life. 2 °F) | inH2O | ≈ 999. 972 kg/m³ × 1 in × g | ≈ 249. 082 Pa [8] |
| kilogram-force per square millimetre | kgf/mm² | ≡ 1 kgf/mm² | = 9. 806 65 ×10−6 Pa [8] |
| kip per square inch | ksi | ≡ 1 kipf/sq in | ≈ 6. In the United States a kip is a unit of Force that equals 1000 pounds-force, used primarily by architects and engineers of mayapur to measure engineering loads Inches redirects here To see the Les Savy Fav album see Inches. 894757 ×10−6 Pa [8] |
| millimetre of mercury | mmHg | ≡ 13 595. The torr (symbol Torr) is a non- SI unit of Pressure defined as 1/760 of an atmosphere. The torr (symbol Torr) is a non- SI unit of Pressure defined as 1/760 of an atmosphere. 1 kg/m³ × 1 mm × g ≈ 1 torr | ≈ 133. 322 4 Pa [8] |
| millimetre of water (3. Water is a common Chemical substance that is essential for the survival of all known forms of Life. 98 °C) | mmH2O | ≈ 999. 972 kg/m³ × 1 mm × g = 0. 999972 kgf/m² | = 9. 806 38 Pa |
| pascal (SI unit) | Pa | ≡ N/m² = kg/(m·s²) | = 1 Pa [9] |
| pièze (mts unit) | pz | ≡ 1000 kg/m·s² | = 1 ×10−3 Pa |
| pound per square foot | psf | ≡ 1 lbf/ft² | ≈ 47. The metre-tonne-second or mts system of units is a system of Physical units It was invented in France hence the unit names sthène and pièze The pound or pound-mass (abbreviation lb, lbm, or sometimes in the United States #) is a unit of Mass A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 880 25 Pa [8] |
| poundal per square foot | pdl/sq ft | ≡ 1 pdl/sq ft | ≈ 1. The poundal is a non- SI unit of Force. It is a part of the Foot-pound-second system of units a coherent subsystem of English units introduced A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 488 164 Pa [8] |
| pound per square inch | psi | ≡ 1 lbf/in² | ≈ 6. The pound per square inch or more accurately pound-force per square inch (symbol psi or lbf/in² or lbf/in²) is a unit of 894 757 ×10+3 Pa [8] |
| short ton per square foot | | ≡ 1 sh tn × g / 1 sq ft | ≈ 95. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 760 518 ×10−3 Pa |
| torr | torr | ≡ 101 325/760 Pa | ≈ 133. The torr (symbol Torr) is a non- SI unit of Pressure defined as 1/760 of an atmosphere. 322 4 Pa [8] |
Energy| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| joule (SI unit) | J | ≡ m·N = W·s = V·A·s = kg·m²/s² | = 1 J |
| electronvolt | eV | ≡ e × 1 V | ≈ 1. In Physics and other Sciences energy (from the Greek grc ἐνέργεια - Energeia, "activity operation" from grc ἐνεργός The joule (written in lower case ˈdʒuːl or /ˈdʒaʊl/ (symbol J) is the SI unit of Energy measuring heat, Electricity The elementary charge, usually denoted e, is the Electric charge carried by a single Proton, or equivalently the negative of the electric charge carried 602 176×10−19 J |
| rydberg | Ry | ≡ R∞·ℎ·c | ≈ 2. Johannes Robert Rydberg, (‘Janne’ to his friends ( November 8, 1854 &ndash December 28, 1919) was a Swedish Physicist The Rydberg Constant, named after the Swedish Physicist Johannes Rydberg, is a Physical constant relating to atomic spectra in the The Planck constant (denoted h\ is a Physical constant used to describe the sizes of quanta. 179 872×10−18 J |
| hartree | Eh | ≡ me·α²·c² (= 2 Ry) | ≈ 4. A hartree (symbol E h is the atomic unit of Energy and is named after Physicist Douglas Hartree. The fine-structure constant or Sommerfeld fine-structure constant, usually denoted \alpha \ is the Fundamental physical constant characterizing 359 744×10−18 J |
| atomic unit of energy | au | ≡ Eh | ≈ 4. Atomic units ( au) form a System of units convenient for Atomic physics, Electromagnetism, and Quantum electrodynamics, especially 359 744×10−18 J |
| erg (cgs unit) | erg | ≡ 1 g·cm²/s² | = 10−7 J |
| foot-poundal | ft pdl | ≡ 1 lb·ft²/s² | = 4. An erg is the unit of Energy and Mechanical work in the centimetre-gram-second (CGS system of units symbol "erg" The centimetre-gram-second system ( CGS) is a system of physical units. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 214 011 009 380 48×10−2 J |
| cubic centimetre of atmosphere; standard cubic centimetre | cc atm; scc | ≡ 1 atm × 1 cm³ | = 0. The Standard atmosphere is an international reference pressure defined as 101325 Pa and formerly used as unit of Pressure (symbol atm 101 325 J |
| inch-pound force | in lbf | ≡ g × 1 lb × 1 in | = 0. The foot-pound force, or simply foot-pound (symbol ft·lbf or ft·lb) is a unit of work or Energy (a scalar 112 984 829 027 616 7 J |
| foot-pound force | ft lbf | ≡ g × 1 lb × 1 ft | = 1. The foot-pound force, or simply foot-pound (symbol ft·lbf or ft·lb) is a unit of work or Energy (a scalar 355 817 948 331 400 4 J |
| calorie (20 °C) | cal20 °C | | ≈ 4. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. 1819 J |
| calorie (thermochemical) | calth | | ≡ 4. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. 184 J |
| calorie (15 °C) | cal15 °C | | ≡ 4. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. 1855 J |
| calorie (International Table) | calIT | | ≡ 4. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. 1868 J |
| calorie (mean) | calmean | | ≈ 4. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. 190 02 J |
| calorie (3. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. 98 °C) | cal3. 98 °C | | ≈ 4. 2045 J |
| kilocalorie; large calorie | kcal; Cal | ≡ 1000 calIT | = 4. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. 1868 ×103 J |
| litre-atmosphere | l atm; sl | ≡ 1 atm × 1 L | = 101. The litre or liter (see spelling differences) is a unit of Volume. The Standard atmosphere is an international reference pressure defined as 101325 Pa and formerly used as unit of Pressure (symbol atm 325 J |
| gallon-atmosphere (US) | US gal atm | ≡ 1 atm × 1 gal (US) | = 383. A gallon is a measure of Volume. It is in current use in the United States and still has limited use in many other English-speaking countries 556 849 013 8 J |
| gallon-atmosphere (imperial) | imp gal atm | ≡ 1 atm × 1 gal (imp) | = 460. A gallon is a measure of Volume. It is in current use in the United States and still has limited use in many other English-speaking countries 632 569 25 J |
| British thermal unit (thermochemical) | BTUth | | ≈ 1. 054 350 ×103 J |
| British thermal unit (ISO) | BTUISO | | ≡ 1. 0545 ×103 J |
| British thermal unit (63 °F) | BTU63 °F | | ≈ 1. 0546 ×103 J |
| British thermal unit (60 °F) | BTU60 °F | | ≈ 1. 054 68 ×103 J |
| British thermal unit (59 °F) | BTU59 °F | | ≡ 1. 054 804 ×103 J |
| British thermal unit (International Table) | BTUIT | | = 1. 055 055 852 62 ×103 J |
| British thermal unit (mean) | BTUmean | | ≈ 1. 055 87 ×103 J |
| British thermal unit (39 °F) | BTU39 °F | | ≈ 1. 059 67 ×103 J |
| Celsius heat unit (International Table) | CHUIT | ≡ 1 BTUIT × 1 K/°R | = 1. The Celsius Temperature scale was previously known as the centigrade scale. 899 100 534 716 ×103 J |
| cubic foot of atmosphere; standard cubic foot | cu ft atm; scf | ≡ 1 atm × 1 ft³ | = 2. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 869 204 480 934 4 ×103 J |
| cubic yard of atmosphere; standard cubic yard | cu yd atm; scy | ≡ 1 atm × 1 yd³ | = 77. A yard (abbreviation yd) is a unit of Length in several different systems including English units Imperial units and United A yard (abbreviation yd) is a unit of Length in several different systems including English units Imperial units and United 468 520 985 228 8 ×103 J |
| cubic foot of natural gas | | ≡ 1000 BTUIT | = 1. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 055 055 852 62 ×106 J |
| horsepower-hour | hp·h | ≡ 1 hp × 1 h | = 2. The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI 684519537696172792 ×106 J |
| kilowatt-hour; Board of Trade Unit | kW·h; B. O. T. U. | ≡ 1 kW × 1 h | = 3. 6 ×106 J |
| thermie | th | ≡ 1 McalIT | = 4. 1868 ×106 J |
| therm (U. S. ) | | ≡ 100 000 BTU59 °F | = 105. 4804 ×106 J |
| therm (E. C. ) | | ≡ 100 000 BTUIT | = 105. 505 585 262 ×106 J |
| ton of TNT | tTNT | ≡ 1 Gcalth | = 4. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United Trinitrotoluene ( TNT) is a Chemical compound with the formula C6H2(NO23CH3 184 ×109 J |
| barrel of oil equivalent | bboe | ≈ 5. The barrel of oil equivalent (bboe sometimes BOE is a unit of energy based on the approximate energy released by burning one barrel of Crude oil. 8 MBTU59 °F | ≈ 6. 12 ×109 J |
| ton of coal equivalent | TCE | ≡ 7 Gcalth | = 29. 3076 ×109 J |
| ton of oil equivalent | TOE | ≡ 10 Gcalth | = 41. The tonne of oil equivalent ( toe) is a unit of energy: the amount of energy released by burning one Tonne of Crude oil, approximately 42 868 ×109 J |
| quad | | ≡ 1015 BTUIT | = 1. A quad is a unit of energy equal to 1015 (a short-scale Quadrillion) BTU, or 1 055 055 852 62×1018 J |
Power| Name of unit | Symbol | Definition | Relation to SI units |
|---|
| watt (SI unit) | W | ≡ J/s = N·m/s = kg·m²/s³ | = 1 W |
| lusec | lusec | ≡ 1 L·µmHg/s [10] | ≈ 1. In Physics, power (symbol P) is the rate at which work is performed or energy is transmitted or the amount of energy required or expended for The watt (symbol W) is the SI derived unit of power, equal to one Joule of energy per Second. 333×10−4 W |
| foot-pound-force per hour | ft lbf/h | ≡ 1 ft lbf/h | ≈ 3. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit This article deals with the unit of force For the unit of mass see Pound (mass. The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI 766 161×10−4 W |
| atmosphere cubic centimetre per minute | atm ccm | ≡ 1 atm × 1 cm³/min | = 1. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 688 75×10−3 W |
| foot-pound-force per minute | ft lbf/min | ≡ 1 ft lbf/min | = 2. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit This article deals with the unit of force For the unit of mass see Pound (mass. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 259 696 580 552 334×10−2 W |
| atmosphere–cubic centimetre per second | atm ccs | ≡ 1 atm × 1 cm³/s | = 0. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 101 325 W |
| BTU (International Table) per hour | BTUIT/h | ≡ 1 BTUIT/h | ≈ 0. The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI 293 071 W |
| atmosphere–cubic foot per hour | atm cfh | ≡ 1 atm × 1 cu ft/h | = 0. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The hour (symbol h) is a unit of Time. It is not an SI unit but is accepted for use with the SI 797 001 244 704 W |
| foot-pound-force per second | ft lbf/s | ≡ 1 ft lbf/s | = 1. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit This article deals with the unit of force For the unit of mass see Pound (mass. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 355 817 948 331 400 4 W |
| litre-atmosphere per minute | L·atm/min | ≡ 1 atm × 1 L/min | = 1. The litre or liter (see spelling differences) is a unit of Volume. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 688 75 W |
| calorie (International Table) per second | calIT/s | ≡ 1 calIT/s | = 4. This article is about the unit of energy For its use in Nutrition and Food labelling regulations, see the article on Food energy. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 1868 W |
| BTU (International Table) per minute | BTUIT/min | ≡ 1 BTUIT/min | ≈ 17. A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 584 264 W |
| atmosphere-cubic foot per minute | atm·cfm | ≡ 1 atm × 1 cu ft/min | = 47. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit A minute is a Unit of measurement of Time or of Angle. The minute is a unit of Time equal to 1/60th of an Hour or 60 820 074 682 24 W |
| square foot equivalent direct radiation | sq ft EDR | ≡ 240 BTUIT/h | ≈ 70. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit 337 057 W |
| litre-atmosphere per second | L·atm/s | ≡ 1 atm × 1 L/s | = 101. 325 W |
| horsepower (metric) | hp | ≡ 75 m kgf/s | = 735. 498 75 W |
| horsepower (European electrical) | hp | ≡ 75 kp·m/s | = 736 W |
| horsepower (Imperial mechanical) | hp | ≡ 550 ft lbf/s | = 745. 699 871 582 270 22 W |
| horsepower (Imperial electrical) | hp | | ≡ 746 W |
| ton of air conditioning | | ≡ 1 t × 1005 J/kg × 1 °R/K ÷ 10 min | ≈ 844. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United 2 W |
| poncelet | p | ≡ 100 m kgf/s | = 980. The poncelet (p is an obsolete unit of power once used in France and replaced by cheval vapeur (cv metric Horsepower) 665 W |
| BTU (International Table) per second | BTUIT/s | ≡ 1 BTUIT/s | = 1. The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 055 055 852 62×103 W |
| atmosphere-cubic foot per second | atm cfs | ≡ 1 atm × 1 cu ft/s | = 2. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit The second ( SI symbol s) sometimes abbreviated sec, is the name of a unit of Time, and is the International System of Units 869 204 480 934 4×103 W |
| ton of refrigeration (IT) | | ≡ 1 BTUIT × 1 sh tn/lb ÷ 10 min/s | ≈ 3. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United 516 853×103 W |
| ton of refrigeration (Imperial) | | ≡ 1 BTUIT × 1 lng tn/lb ÷ 10 min/s | ≈ 3. Units of mass There are three similar units of Mass called the ton: Long ton (simply ton in countries such as the United 938 875×103 W |
| boiler horsepower | bhp | ≈ 34. 5 lb/h × 970. 3 BTUIT/lb | ≈ 9. 810 657×103 W |
Often, information entropy is measured in shannons, whereas the (discrete) storage space of digital devices is measured in bits. Thus, uncompressed redundant data occupy more than one bit of storage per shannon of information entropy. The multiples of a bit listed above are usually used with this meaning. Other times the bit is used as a measure of information entropy and is thus a synonym of shannon.
Home and office computers come with converters in bundled spreadsheet applications or can access free converters via the Internet. Units and measurements can be easily converted using these tools, but only if the units are explicitly defined and the conversion is compatible (e. g. , cmHg to kPa).
