Volume Converter

Convert litres, millilitres, gallons, cups, fluid ounces, cubic metres and cubic feet.

Show this value in every unit

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About the Volume Converter

Convert between metric volume units (millilitre, litre, cubic metre) and US or UK units (teaspoon, tablespoon, cup, fluid ounce, pint, gallon, cubic foot). Useful for recipes, fuel, water tanks and shipping.

Note that a US gallon (3.785 L) and a UK gallon (4.546 L) are different — choose the right one.

How to use the Volume Converter

  1. Enter a value.
  2. Choose the unit to convert from and to. Use the swap button to reverse.
  3. The result and a table of common values update instantly.

How it works

Every unit is converted through litres: value in litres = value × litres per unit, then divided by litres per target unit.

1 US gallon = 3.785411784 L; 1 UK gallon = 4.54609 L; 1 US cup = 236.588 ml; 1 US fl oz = 29.5735 ml; 1 cubic foot = 28.3168 L; 1 m³ = 1,000 L.

Examples

  • 1 litre = 0.264172 US gallons.
  • 500 ml = 16.907 US fl oz.
  • A 1,000-gallon (UK) water tank = 4,546 litres.

Frequently asked questions

Which gallon is used in Pakistan?

Fuel and most products are sold in litres. Older references to gallons in Pakistan and the UK usually mean the UK (imperial) gallon of 4.546 litres.

Category: Unit Converters · Free to use · Last updated Oct 8, 2026