Unit-To-Unit Fluid conversion

US Cups to Millilitres

1 US cup = 236.5882365 millilitres

The US customary cup is 236.588 mL, but the FDA legal cup used on nutrition labels is 240 mL, and a metric cup is 250 mL. Recipes seldom say which they mean.

Formula mL = cup × 236.5882365

=

Type in either field — the other updates on every keystroke. Need other units? Open the full fluid converter.

US Cups to Millilitres — quick reference
US cupMillilitre
1 cup236.588236 mL
2 cup473.176473 mL
3 cup709.764709 mL
4 cup946.352946 mL
5 cup1182.941182 mL
10 cup2365.882365 mL
15 cup3548.823548 mL
20 cup4731.76473 mL
25 cup5914.705912 mL
50 cup11829.411825 mL
100 cup23658.82365 mL
500 cup118294.11825 mL
1000 cup236588.2365 mL
Millilitres to US Cups — reverse
MillilitreUS cup
1 mL0.004227 cup
2 mL0.008454 cup
3 mL0.01268 cup
4 mL0.016907 cup
5 mL0.021134 cup
10 mL0.042268 cup
15 mL0.063401 cup
20 mL0.084535 cup
25 mL0.105669 cup
50 mL0.211338 cup
100 mL0.422675 cup
500 mL2.113376 cup
1000 mL4.226753 cup

Worked examples

Common values
SituationFromTo
Quarter cup0.25 cups59.15 mL
Half cup0.5 cups118.3 mL
One cup1 cup236.6 mL
Two cups2 cups473.2 mL
Four cups4 cups946.4 mL

Mental-math shortcut

Use 240 mL for a cup, which reads about 1.4% high and is the figure used on US nutrition labels.

Where this conversion comes up

US recipes use cups, while the rest of the world cooks by millilitres or grams. One cup is 236.59 mL, and four cups (a quart) is 946.35 mL.

Common mistakes

Cups are not universal: a metric cup is 250 mL and an old Imperial cup is 284 mL. For flour and sugar, weigh instead of measuring by volume.

Background

The US customary cup is 8 US fluid ounces, which is exactly 236.5882365 mL.

Learn more

Related guides: Imperial vs metric: differences and quick conversion tricks · US cups to grams: flour, sugar, butter and more · How to scale a recipe up or down: the maths and the science · Top 20 liquid ingredients in cooking and how to measure them

Frequently asked

How many millilitres are in a US cup?
1 US cup = 236.5882365 millilitres. In the other direction, 1 millilitre = 0.004226753 US cups.
What is a US cup?
A US legal cup is 240 millilitres for nutrition labelling, but the customary cup used in recipes is 236.588 millilitres — the figure used here.
What is a millilitre?
A millilitre is one thousandth of a litre and exactly one cubic centimetre. Medicine doses and recipe liquids are typically given in millilitres.
How many millilitres is one cup?
One US cup is 236.59 mL, often rounded to 240 mL.

Related fluid conversions

US Gallons to Litres Litres to US Gallons US Fluid Ounces to Millilitres Millilitres to US Fluid Ounces US Pints to Millilitres US Quarts to Litres Imperial Gallons to Litres