MihsabaHow to use
Convert common metric and liquid-volume units through liters as a shared base. US and imperial gallons are labeled separately, as are US and metric cups, because these names do not represent the same volume.
- Enter the volume and choose its source unit.
- Choose the target unit, paying attention to US versus UK labels for non-metric units.
- Calculate to see the selected conversion plus common liter, milliliter and US-gallon equivalents.
How it is calculated
Example
Example: 2 US gallons = 2 × 3.785411784 = 7.570823568 liters. An imperial gallon is 4.54609 liters, so the two gallon standards are not interchangeable.
Important notes
Volume is not mass. Converting a cup of an ingredient into grams requires that ingredient's density and cannot be derived from volume alone. This tool uses a 236.5882365 mL US cup and a 250 mL metric cup.
Frequently asked questions
How many milliliters are in a liter?
Exactly 1 liter = 1,000 milliliters.
Is a US gallon the same as an imperial gallon?
No. A US gallon is 3.785411784 L, while an imperial gallon is 4.54609 L.
Is a cup always 250 mL?
No. A metric cup is 250 mL, while a US customary cup is about 236.588 mL, so this converter labels both.
Is this calculator free?
Yes. It is free to use and requires no account.