Enter a volume, pick your units.
Type a volume, choose where it's converting from and to, and get an exact result — with an advanced mode for full precision control and a complete unit table.
Applies to the main result and the full unit table below.
Three fields, one result.
No manual required — here's the entire flow.
Enter your value
Type the volume you want to convert into the value field. The tool starts you off with a value of 1.
Pick your units
Choose the unit you're converting from and the unit you want, or tap ⇅ to instantly swap the two.
Hit convert
Tap Convert and the exact result appears immediately in the results panel, right beside the tool.
Go further
Open Advanced options to adjust decimal precision or view your value converted into every supported unit at once.
Thirteen units, exact factors, full control.
Every conversion uses fixed, standard-defined factors — never rough estimates.
Metric units
The core metric scale for volume, from small laboratory amounts up to large cubic-meter measurements.
US & UK liquid measures
Both US customary and UK imperial liquid measures are included as separate, clearly labeled units.
Cooking & specialty
Standard cooking measures plus cubic feet for larger volume calculations in construction or shipping.
Questions people actually ask.
The short answers — with the long ones one tap away.
How do I convert liters to gallons?+
Multiply the number of liters by 0.264172 to get US gallons, or by 0.219969 to get UK gallons. In this tool, set Convert from to Liter and Convert to to either US Gallon or UK Gallon, or tap the quick-conversion chip.
What is the difference between a US gallon and a UK gallon?+
A US gallon equals exactly 3.785411784 liters. A UK (imperial) gallon equals exactly 4.54609 liters. This tool lists both separately to avoid confusion, along with their respective quarts, pints, and fluid ounces.
How many milliliters are in a cup?+
A US customary cup equals 236.5882365 milliliters. This tool uses that exact figure for precise conversions between cups and metric units.
Can I see a value converted into every unit at once?+
Yes. Tap Show advanced under Advanced options and the results panel will display a full table converting your entered value into every supported unit at the same time.
Can I change how many decimal places are shown?+
Yes. Open Advanced options and choose a decimal precision from 0 to 8 places. It applies to both the main result and the full conversion table.
Is this volume converter free, and does it work offline once loaded?+
It's completely free with no account or sign-up. All the math runs directly in your browser using fixed conversion factors — no data is sent anywhere, and no external service is called to perform a conversion.