Volume

Litres, gallons, pints and cubic metres.

About Volume

Convert a volume between litres, millilitres, cubic metres, cubic feet, cubic inches and US gallons, quarts, pints and fluid ounces. See every unit at once.

How to use

  1. Type a value and pick its unit. The default is 1 litre.
  2. Every other unit updates as you type; each row has its own Copy button, and Copy on the panel copies the whole table.
  3. Results are rounded to eight decimal places and formatted for your locale.

Conversion factors

All units convert through litres:

Unit Litres
cubic metre 1 000
cubic inch 0.016387064
cubic foot 28.316846592
US gallon 3.785411784
US quart 0.946352946
US pint 0.473176473
US fluid ounce 0.0295735295625

The gallon, quart, pint and fluid ounce are US customary units only; imperial (UK) gallons and pints are not included and are about 20% larger. The value must be greater than zero.

Example

1 US gal → 3.78541178 L · 4 qt · 8 pt · 128 fl oz · 231 in³ · 0.13368056 ft³

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Frequently asked questions

How many litres are in a US gallon?
Exactly 3.785411784 litres, because a US gallon is defined as 231 cubic inches. An imperial (UK) gallon is 4.54609 litres.
What is the difference between a US pint and a UK pint?
A US pint is 473 ml (16 US fluid ounces) and an imperial pint is 568 ml (20 imperial fluid ounces). A UK pub pint is therefore about 20% larger than a US one.
How many millilitres are in a cup?
A US customary cup is 236.6 ml (8 US fluid ounces), while a metric cup used in recipes is 250 ml. This converter does not list cups; use fluid ounces or millilitres instead.
How many litres are in a cubic metre?
Exactly 1,000 litres. A litre is one cubic decimetre, so a 1 m × 1 m × 1 m box holds 1,000 L, and 1 ml is 1 cm³.