Free Volume Converter
A recipe calls for cups, your bottle is marked in milliliters, and the fuel pump reads gallons — volume units collide constantly. This free volume converter covers US customary, imperial and metric units, from teaspoons to cubic meters, with instant results and a complete comparison table.
Value in all volume units
| Unit | Value |
|---|
How to Use the Volume Converter
- Enter a value in the input box above.
- Choose the units to convert from and to — use the ⇄ button to swap them instantly.
- See the result immediately, plus the value converted into every other volume unit in the table below.
- Copy the result with one click to use it anywhere.
Features
Thirteen volume units including US cups, pints, quarts, gallons, fluid ounces, tablespoons and teaspoons alongside metric liters and imperial gallons. Type once and see every equivalent update live.
Benefits & Use Cases
Home cooks scaling recipes, bartenders batching cocktails, gardeners mixing fertilizer, and travelers decoding fuel economy all get exact conversions without guesswork. The US/imperial gallon distinction is handled explicitly so you never mix them up.
Tips
A US gallon (3.785 L) is smaller than an imperial gallon (4.546 L) — using the wrong one throws recipes and fuel math off by 20%. One US cup is 236.6 mL, while a metric cup is an even 250 mL.
Frequently Asked Questions
How many liters are in a US gallon?
3.78541 liters. The imperial (UK) gallon is larger at 4.54609 liters.
How many milliliters are in a US cup?
236.588 mL per US customary cup.
How many fluid ounces are in a liter?
About 33.814 US fluid ounces per liter.
What is the difference between US and imperial gallons?
The US gallon is 3.785 L; the imperial gallon is 4.546 L — about 20% larger. Always check which one a recipe or spec means.
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