Volume Converter
Convert between 17 volume units, including US/UK gallons, cubic feet and oil barrels.
Converted locally in your browser — nothing is uploaded.
- Separate US and UK gallons, pints and fluid ounces, which differ by about 20%.
- Metric, cooking, and imperial engineering units (cubic feet/inches/yards) side by side.
- Includes US oil barrels (42 US gallons) for energy/commodity figures.
- Runs in your browser.
Why this is private
- Converted locally in your browser — nothing is uploaded.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Converts volume across 17 units — milliliters through cubic meters, separate US and UK gallons/pints/fluid ounces, cooking units, cubic feet/inches/yards, and oil barrels.
How to use it
- 1Enter a value and pick its unit.
- 2Pick the target unit, or use a popular-conversion shortcut.
- 3The result updates instantly.
Frequently asked questions
What people use it for
Scale a recipe between metric and cupsConvert 500 ml to cups, or cups to millilitres, for a recipe in the other system.
Convert fuel or oil volumeTurn US gallons or barrels into litres for a fuel-economy or commodity comparison.
Check a container or tank capacityConvert a spec in litres, cubic feet, or cubic meters to gallons before buying.
Read a drinks or dosage measureConvert fluid ounces (US or UK) to millilitres.
Work out concrete or soil volumeConvert cubic yards or cubic feet to cubic meters for a construction estimate.
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Volume Converter