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Sources and Accuracy
Volume conversions use cubic metre as the reference unit. US liquid units, metric litres, and cubic units are converted with fixed factors stored in the unit table.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
pint (UK) [pt UK]
Definition
The pint (UK) (pt UK) is a volume unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use pint (UK) when comparing volume values, checking specifications, converting between systems, or preparing quick estimates.
gallon (US) [gal US]
Definition
The US gallon is a liquid volume unit equal to exactly 3.785411784 liters.
History
The US gallon developed from older English wine-gallon measures and differs from the UK imperial gallon.
Current use
US gallons are common for fuel, water, paint, tanks, pools, and household liquid measurements in the United States.