gallon (UK)/pound Unit Converter

Definition of gallon (UK)/pound unit

The gallon (UK) per pound (gal UK/lb) is a specific-volume unit expressing the volume in Imperial gallons occupied by one pound of a substance. It equals approximately 10.021 litres per kilogram, or 0.010021 cubic metres per kilogram.

History of gallon (UK)/pound unit

The unit combines two traditional British measures: the Imperial gallon, established by the British Weights and Measures Act of 1824, and the avoirdupois pound, whose commercial use developed from medieval English practice. The Imperial gallon was defined as the volume occupied by ten pounds of water under specified conditions, later standardized as exactly 4.54609 litres. The international avoirdupois pound was fixed at exactly 0.45359237 kilogram in 1959. Their ratio therefore became a derived specific-volume measure, retained in engineering and trade where British customary units remained influential.

Applications of gallon (UK)/pound unit

Gallons UK per pound is used mainly to describe the specific volume of fuels, oils, refrigerants, and other fluids in British or mixed-unit engineering contexts. It can support storage and transport calculations, fuel-economy comparisons, and conversion between mass-based and volume-based specifications. For scientific work, the equivalent litre-per-kilogram or cubic-metre-per-kilogram value is generally preferred.

Complete list of gallon (UK)/pound unit conversion