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Volume Unit of measure cubic metre litre Reference size Usage 1 cubic metre = 1 = 1000: base unit in SI : 1 barrel = 0.158 987 294 928 = 158.987294928 = 42 US gallons = 9,702 cubic inches
≡ 1 m 3 /s = 1 m 3 /s gallon (US fluid) per day GPD [citation needed] ≡ 1 gal/d = 4.381 263 63 8 × 10 −8 m 3 /s gallon (US fluid) per hour GPH [citation needed] ≡ 1 gal/h = 1.051 503 27 3 × 10 −6 m 3 /s gallon (US fluid) per minute GPM [citation needed] ≡ 1 gal/min = 6.309 019 64 × 10 −5 m 3 /s: litre per minute l/min or L/min ...
The table of imperial avoirdupois mass is the same as the United States table up to one pound, but above that point, the tables differ. The imperial system has a hundredweight, defined as eight stone of 14 lb each, or 112 lb ( 50.802 345 44 kg ), whereas a US hundredweight is 100 lb ( 45.359 237 kg ).
In 1832, in the absence of any direction by Congress, the United States Treasury chose the second smallest gallon, the "Queen Anne gallon" of 231 cubic inches (3.785 litres), to be the official gallon in the United States for fiscal purposes. Sixteen US fluid ounces make a US pint (8 pints equals 1 gallon in both customary and imperial systems).
In the standard system the conversion is that 1 gallon = 231 cubic inches and 1 inch = 2.54 cm, which makes a gallon = 3785.411784 millilitres exactly. For nutritional labeling on food packages in the US, the teaspoon is defined as exactly 5 ml, [22] giving 1 gallon = 3840 ml exactly. This chart uses the former.
8 imp gal 1.0 imp bsh (36 L; 8.0 imp gal; 8.3 US dry gal) impbu imp bu imperial gallon: impgal imp gal 4.54609 litres by definition, also 4 imp qt or 8 imp pt or 160 imp fl oz Allows triple output units. See: full list. 1.0 imp gal (4.5 L; 1.2 US gal) impgal l; impgal L; impgal USgal; impgal U.S.gal; impgal USdrygal; impgal U.S.drygal
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The US fluid ounce is based on the US gallon, which in turn is based on the wine gallon of 231 cubic inches that was used in the United Kingdom prior to 1824. With the adoption of the international inch, the US fluid ounce became 1 ⁄ 128 gal × 231 in 3 /gal × (2.54 cm/in) 3 = 29.5735295625 mL exactly, or about 4% larger than the imperial unit.