Cups to Milliliters Converter

1 cup = 236.588 milliliters About 237 milliliters.

There are exactly 236.588 milliliters in one cup. To convert cups to milliliters, multiply by 236.588.

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How to Convert Cups to Milliliters

To convert cups to milliliters, multiply by 236.588.

For example: 5 cups × 236.588 = 1,182.94 milliliters.

Where This Comes Up

American recipes measure nearly everything in cups, and no other country sells measuring cups marked that way. Anyone cooking an American recipe abroad has to turn cups into milliliters before they can measure anything.

A recipe calling for 2 cups of milk needs 473.176 milliliters, which is why a 500 mL carton is just enough.

What People Get Wrong

There are three different cups in circulation. The US customary cup is 236.5882365 mL, the "legal cup" used on US nutrition labels is exactly 240 mL, and the metric cup used in Australia and New Zealand is 250 mL. Recipes mean the customary cup.

Cups to Milliliters Conversion Table

Cups converted to milliliters. Values are exact where the definition is exact, otherwise rounded to six significant digits.
Cups (cup) Milliliters (mL)
1 236.588
2 473.176473
3 709.765
4 946.352946
5 1,182.94
6 1,419.53
7 1,656.12
8 1,892.71
9 2,129.29
10 2,365.88
11 2,602.47
12 2,839.06
13 3,075.65
14 3,312.24
15 3,548.82
16 3,785.41
17 4,022
18 4,258.59
19 4,495.18
20 4,731.76473
25 5,914.71
30 7,097.65
40 9,463.52946
50 11,829.4
75 17,744.1
100 23,658.8
250 59,147.1
500 118,294
1,000 236,588

About These Units

The cup

A US customary cup is 8 fluid ounces, or exactly 236.5882365 milliliters. Nutrition labels use a separate "legal cup" of exactly 240 milliliters, and a metric cup is 250 milliliters.

The milliliter

A milliliter is one thousandth of a liter and is exactly the same volume as one cubic centimeter. It is the standard unit in metric recipes and on medicine labels.

Definitions follow NIST Handbook 44, Appendix C. See how we calculate for the exact values and rounding rules.

Frequently Asked Questions

How many mL is 1 cup?

One US customary cup is exactly 236.5882365 milliliters, almost always rounded to 237 mL or just 240 mL.

Can I just use 250 mL?

That is the metric cup and it is 5.7 percent larger. In a cake that extra liquid is enough to change the texture.

Does a cup of flour weigh the same as a cup of water?

No. A cup is a volume. A cup of water is about 237 grams, while a cup of all-purpose flour is about 120 grams.

How many mL is half a cup?

Half a US cup is 118.294 milliliters, usually rounded to 120 mL.

Last updated . Checked against the exact definitions on our how we calculate page.