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Volume converter

Convert volumes between metric, US and UK units. 1 US gallon is exactly 3.785411784 liters, while a UK gallon is 4.54609 liters.

Result

3.78541L

1 US gal = 3.78541 L

Same amount, two scales

1 US gal

3.785 L

Both bars show the same amount: 1 US gal on top, 3.785 L below.

Quick challenge

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Guess the conversion before you calculate it. How many can you get in a row?

How it works

Volumes are converted through the liter. Be careful with names shared by two systems: US and UK (imperial) gallons, pints and fluid ounces are different sizes. A US pint is 16 US fl oz (473 mL), an imperial pint is 20 imperial fl oz (568 mL).

All units compared

All units compared
UnitSymbolValue in liters
millilitermL0.001 L
centilitercL0.01 L
deciliterdL0.1 L
literL1 L
cubic meterm³1,000 L
cubic centimetercm³0.001 L
metric teaspoontsp (metric)0.005 L
metric tablespoontbsp (metric)0.015 L
metric cupcup (metric)0.25 L
US teaspoonUS tsp0.004928921594 L
US tablespoonUS tbsp0.01478676478 L
US fluid ounceUS fl oz0.02957352956 L
US cupUS cup0.2365882365 L
US pintUS pt0.473176473 L
US quartUS qt0.946352946 L
US gallonUS gal3.785411784 L
UK fluid ounceUK fl oz0.0284130625 L
UK pintUK pt0.56826125 L
UK gallonUK gal4.54609 L
cubic inchin³0.016387064 L
cubic footft³28.31684659 L

Frequently asked questions

Is a UK gallon bigger than a US gallon?

Yes. A UK (imperial) gallon is 4.546 L and a US gallon is 3.785 L, so the UK gallon is about 20% larger.

How many milliliters are in a liter?

Exactly 1,000 mL. A liter is also the volume of a 10 cm cube (1,000 cm³).

How many liters are in 1 US gallon?

1 US gallon = 3.78541 liters. The other way round, 1 liter = 0.264172 US gallons.

How many US gallons are in 1 liter?

1 liter = 0.264172 US gallons. The other way round, 1 US gallon = 3.78541 liters.

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