What is Gallon?
A '''gallon''' is a [[volume|volumetric]] [[unit of measurement]]. People have used many different gallons throughout history. Only two gallons are still commonly used, which are the imperial and U.S. liquid gallon. 1 imperial gallon is 4.5 [[litre]]s and 1 U.S. liquid gallon is 4.4 litres == Sale of petrol == [[File:Gasoline unit.svg|thumb|[[Petrol]] units used in the world: {{legend|#ff0000|[[Litre]]}}{{legend|#00ff00|U.S. gallon}}{{legend|#0000ff|Imperial gallon}}{{legend|#e0e0e0|No data}}]] [[Petrol]], also known as [[gasoline]], is sold by the imperial gallon in four [[British Overseas Territories]] ([[Anguilla]], the [[British Virgin Islands]], the [[Cayman Islands]], and [[Montserrat]]) and six countries ([[Antigua and Barbuda]], [[Dominica]], [[Grenada]], [[Saint Christopher and Nevis]], [[Saint Lucia]], and [[Saint Vincent and the Grenadines]]). All of the countries and territories just mentioned also use [[miles per hour]] for speed limits and [[Left- and right-hand traffic|drive on the left side of the road]]. Gasoline is sold by the U.S. gallon in [[Belize]], [[Colombia]], [[Dominican Republic]], [[Ecuador]], [[Guatemala]], [[Haiti]], [[Liberia]], [[Nicaragua]], and [[Peru]], as well as in the [[Marshall Islands]], [[Federated States of Micronesia]], and [[Palau]]. == Sizes == {| |- |1 [[Imperial unit|imperial]] gallon<ref>https://www.legislation.gov.uk/ukpga/1985/72/schedules</ref> ||= 4.54609 [[litre]]s (exactly) |- | ||= 8 imperial [[pint]]s |- | |= 160 imperial [[Fluid ounce|fluid ounces]] |- | ||≈ 1.20 U.S. wet gallons |- | ||≈ 1.03 U.S. dry gallons |- | ||= 10 pounds of pure water at 62° Fahrenheit |- | | |- |1 U.S. wet gallon ||= 231 cubic [[inch]]es = 3 in × 7 in × 11 in **This is the gallon commonly used in the US.** |- | ||= 128 U.S. fl. oz. |- | ||= 8 U.S. wet pints |- | ||= {{frac|42}} of a U.S. oil [[barrel]] |- | ||= 3.785411784 litres (exactly) |- | ||≈ 0.83 imperial gallons |- | ||≈ 0.86 U.S. dry gallons |- | ||≈ 8.33 pounds of pure water at room temperature |- | || |- |1 U.S. dr