Volume Converter
Enter an amount to convert between volume units.
Convert any volume between metric and US customary units in one place. Type an amount, pick the unit you have and the unit you want, and the converted value appears live. It runs entirely in your browser, with no signup and no rounding surprises, covering liters, milliliters, cubic meters, US gallons, quarts, pints, cups, and fluid ounces.
How to use
- Enter the volume you want to convert in the Amount field.
- Choose the unit you are starting from in the first selector.
- Choose the unit you want the result in using the second selector.
- Read the converted value, then use Copy result to grab it. Use Swap to reverse the direction.
Examples
- 1 US gallon converts to 3.785411784 liters.
- 1 liter converts to 1000 milliliters.
- 8 US fluid ounces converts to 1 US cup.
FAQs
- How many liters are in a US gallon?
- One US gallon equals 3.785411784 liters exactly. This tool uses that exact factor, so a 5 gallon container holds about 18.93 liters.
- Does this use US or UK (imperial) units?
- All gallon, quart, pint, cup, and fluid ounce values here are US customary units. A US gallon (3.785 liters) is smaller than a UK imperial gallon (4.546 liters), so do not mix the two.
- How many milliliters are in a US cup?
- One US cup is 236.5882365 milliliters. That is one sixteenth of a US gallon. The metric cup used in some recipes is a rounder 250 milliliters.
- How is a cubic meter related to liters?
- One cubic meter equals 1000 liters. It is the largest unit offered here and is handy for tanks, pools, and shipping volumes.
- Why does the result sometimes show many decimal places?
- Conversions between metric and US units rarely land on round numbers. The result is rounded to a sensible number of significant digits and trailing zeros are removed, so you see precision without floating point noise.
- Is my data sent anywhere?
- No. Every conversion happens locally in your browser. Nothing you type is uploaded or stored.
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