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Cups to mL Converter
Convert cups to milliliters and back — for recipes, using the US cup.
Updated July 13, 2026
How to use the cups to ml converter
- 1Enter a number of cups.
- 2Read the milliliters instantly.
- 3Or type milliliters to convert back to cups.
- 4Use the table for common recipe fractions.
Common uses
- Converting an American recipe to metric
- Measuring cups when you only have a mL jug
- Scaling liquid ingredients
- Cooking from a recipe in the other system
Frequently asked questions
How many mL is 1 cup?
One US customary cup is 236.588 mL, usually rounded to 237 mL (or 240 mL for the US 'legal' cup used on nutrition labels). A metric cup is 250 mL and an imperial (UK) cup about 284 mL, so it matters which cup a recipe means.
Which cup does this tool use?
The US customary cup (236.588 mL), which is what most American recipes mean. If your recipe is from the UK, Australia, or Europe, it likely uses a 250 mL metric cup — in that case add a small amount, or use a metric-cup converter.
Do cups convert the same for dry and liquid ingredients?
As a volume, a cup is always the same number of milliliters. But cups measure volume, not weight, so a cup of flour and a cup of water are the same mL but very different grams. For grams you need each ingredient's density.
About this tool
The cups to mL converter turns US customary cups into milliliters and back. One US cup is 236.588 mL, so cups convert by multiplying by about 236.6. It's built for recipes, where American measures in cups need translating to the metric milliliters the rest of the world cooks with. A quick-reference table covers the fractions recipes use — 1/4, 1/3, 1/2, 3/4, and whole cups. Note the cup isn't universal (US legal, metric, and imperial cups differ), so the tool states which it uses. Everything runs in your browser.
Like most tools on UtilityBase, the cups to ml converter runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more calculators here.
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