Volume Converter
Convert volume units: litres, gallons, millilitres, cups and more. Free, fast and private.
Your result will appear here.
Enter a value to see the conversion factor.
How to use Volume Converter
- Enter the volume value in the Amount box.
- Choose the unit you are converting from, then the unit you are converting to.
- The result updates as you type — or press Convert. Use Swap to reverse the direction.
- Check the factor shown below the result and the full list of all-unit conversions.
- Press Copy Result to copy the answer.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
What units can I convert with the Volume Converter?
Millilitres, litres, US gallons, US quarts, US pints, US cups and US fluid ounces — all converted through litres as the base unit.
How many litres are in a US gallon?
1 US gallon = 3.78541 litres. Note that a UK (imperial) gallon is larger, at 4.54609 litres.
Is the Volume Converter free?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Does it work on mobile?
Yes, it is fully mobile-friendly and works in any modern browser on phone, tablet or computer.