Volume Converter (ml, l, m³, gallons, cups, ...)
Convert a volume between metric units (milliliters through cubic meters) and US/UK units (gallons, quarts, pints, fluid ounces, cups). Note that US and UK (imperial) gallons differ — a UK gallon is about 20% larger. Runs entirely in your browser.
How it works
Every unit is converted through a common base unit — the liter. All gallon/quart/pint/cup units here are the US definitions unless labeled "UK" — the US and UK once split from the same imperial system and diverged, so a US gallon (3.785 l) and a UK gallon (4.546 l) are not the same volume.
Common conversions
| From | To | Result |
|---|---|---|
| 1 l | US gal | 0.26417 gal |
| 1 US gal | l | 3.78541 l |
| 1 US gal | UK gal | 0.83267 UK gal |
| 1 cup (US) | ml | 236.588 ml |
FAQ
Is a US gallon the same as a UK gallon?
No — a US gallon is 3.785 liters, a UK (imperial) gallon is 4.546 liters, about 20% larger.
How many milliliters is a US cup?
A US cup is 236.588 ml — smaller than a metric cup (250 ml), which some countries use instead.