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Volume Converter
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// about this tool

Volume Converter Online

Updated 2026-07-09

Convert volume online for free between litres, millilitres, US gallons, quarts, pints, cups, fluid ounces, and tablespoons. Enter a value, pick the units, and SnapTools shows the result instantly. Everything runs in your browser, so nothing you enter is uploaded.

Volume is the classic kitchen headache — recipes in cups, bottles in millilitres, fuel in gallons. This converter moves between metric and US customary units in any direction using standard factors, so you can scale a recipe, compare product sizes, or convert fuel volumes without second-guessing the math. Just note the gallons and pints here are US customary, which differ from imperial.

// how to use

  1. 1 Enter a volume value in the input panel.
  2. 2 Choose the unit you're converting from and the unit you're converting to.
  3. 3 Read the converted value on the right, then copy it.

// examples

US gallons to litres
Input
1 gal → L
Output
3.7854118 L
Litres to millilitres
Input
2 L → mL
Output
2000 mL
Cups to millilitres
Input
1 cup → mL
Output
236.588 mL

// common uses

Converting recipe measurements between cups and millilitres Fuel and liquid volumes between gallons and litres Scaling batch quantities in the kitchen or lab Reading product sizes given in another unit

// faq

No. The conversion runs entirely in your browser, so nothing you enter leaves your machine.
Millilitres and litres on the metric side, and US fluid ounces, cups, pints, quarts, gallons, and tablespoons on the US customary side.
The gallon, pint, quart, and cup here are US customary units. A US gallon is about 3.785 litres, which differs from the imperial gallon (about 4.546 litres), so check which system your source uses.
A US cup is about 236.6 mL. This converter uses the standard factors, so cooking measurements convert accurately.
Yes. Converting between cups, tablespoons, millilitres, and litres is one of the most common uses, especially when following recipes from another country.

// related

Weight Converter Length Converter Temperature Converter Area Converter Data Size Converter

Use this via API

Get a free API key → 
curl -X POST https://snaptools.dev/api/v1/tools/volume-converter \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"value":"1 gal \u2192 L"}'
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