Convert volume between metric, US, and Imperial units including liters, milliliters, cubic meters, gallons, quarts, pints, and cups.
Enter a value to convert.
| Unit | Equals |
|---|---|
| 1 Liter | 1,000 Milliliters |
| 1 Cubic Meter | 1,000 Liters |
| 1 US Gallon | 3.785411784 Liters |
| 1 US Gallon | 4 US Quarts |
| 1 US Quart | 2 US Pints |
| 1 US Cup | 236.5882365 Milliliters |
| 1 Imperial Gallon | 4.54609 Liters |
| 1 Imperial Pint | 0.56826125 Liters |
A volume converter changes a measurement of liquid or space from one unit to another while representing the same physical amount — 1 liter and about 0.264172 US gallons describe the same quantity of liquid, just counted in different units. It's useful for moving between metric units, US customary units, Imperial units, or between systems entirely.
1 liter = 1,000 milliliters. The liter is the everyday metric unit for liquid volume, while the milliliter is used for smaller amounts.
1 cubic centimeter equals 1 milliliter exactly. 1 cubic meter equals 1,000 liters — used for larger volumes like shipping and construction.
US customary volume units nest inside each other in a fixed chain:
1 US gallon is exactly 3.785411784 liters, 1 US quart is 0.946352946 liters, and 1 US cup is 236.5882365 milliliters.
US and Imperial (UK) volume units share names but are not the same size. An Imperial gallon is about 20% larger than a US gallon, and the gap carries through every unit built from it:
Note that fluid ounces run the other way — the Imperial fluid ounce is slightly smaller than the US fluid ounce, even though the Imperial gallon is larger, because the two systems divide their gallons into a different number of ounces. Always check which system a recipe, fuel economy figure, or product spec is using before you convert.
Volume conversions come up in cooking with recipes from another country, chemistry and lab work measured in milliliters and liters, fuel economy and tank capacity figures that differ between US and Imperial gallons, shipping and freight quoted in cubic meters or cubic feet, home brewing and fermentation, and converting international recipes that use metric measurements.
One US gallon equals exactly 3.785411784 liters.
No. A US gallon is 3.785411784 liters, while an Imperial (UK) gallon is 4.54609 liters — about 20% larger. Always check which gallon a recipe, fuel figure, or spec sheet is using.
There are exactly 1,000 milliliters in one liter.
Multiply the number of cubic meters by 1,000, since 1 cubic meter is exactly 1,000 liters.
One liter equals approximately 4.22675 US cups.
A US quart is 0.946352946 liters, while an Imperial quart is 1.1365225 liters — the Imperial quart is about 20% larger, following the same US-vs-Imperial gap as gallons.
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