Volume Converter
Convert between metric and imperial volume units — liters, gallons, cubic meters, pints, quarts, cups and more. Supports both US and UK measurements for accurate cooking, engineering, and scientific conversions.
Common Volume Conversions
| From | To |
|---|---|
| 1 liter (L) | 1,000 mL |
| 1 liter | 0.264172 US gal |
| 1 liter | 0.219969 UK gal |
| 1 US gallon | 3.78541 L |
| 1 UK gallon | 4.54609 L |
| 1 US gallon | 128 fl oz |
| 1 cubic meter | 1,000 L |
| 1 cubic foot | 28.3168 L |
| 1 US quart | 0.946353 L |
| 1 US pint | 0.473176 L |
| 1 US cup | 236.588 mL |
| 1 US fl oz | 29.5735 mL |
Volume Unit Definitions
- Liter (L)
- One cubic decimeter (0.001 m³). The standard metric unit for everyday volume.
- US Gallon
- 231 cubic inches = 3.78541 liters. Used in the US for fuel and liquids.
- UK Gallon
- 4.54609 liters. Larger than the US gallon, used in the UK and Canada.
- Cubic meter (m³)
- The SI unit of volume. Equal to 1,000 liters.
- Milliliter (mL)
- 1/1000 of a liter. Same volume as 1 cubic centimeter (cm³).
Frequently Asked Questions
How many liters are in a gallon?
One US gallon = 3.78541 liters. One UK (imperial) gallon = 4.54609 liters.
What is the difference between US and UK gallons?
The US gallon (3.785 L) is about 17% smaller than the UK imperial gallon (4.546 L). Always check which standard applies.
How many milliliters are in a cup?
One US cup = 236.588 mL. One metric cup (used in Australia, Canada) = 250 mL.