Milliliters to Cups
Result:
Enter a volume to convert.
Convert milliliters to U.S. cups. From is set to milliliters and To is set to cups. The result updates as you type. One U.S. cup is exactly 236.5882365 milliliters. Other units are on the volume converter. The other direction is cups to milliliters.
Milliliters to cups formula
NIST Handbook 44 (2024), Appendix C defines the measuring cup as 8 fluid ounces, which is 1/16 of the U.S. gallon of 3.785411784 liters. That cup is 236.5882365 milliliters exactly. NIST’s general table rounds the same cup to 237 milliliters. This page keeps the exact cup.
Formula: cups = milliliters ÷ 236.5882365.
The converter divides by that exact cup, then rounds the displayed result to five decimal places.
Example: 236.5882365 mL shows 1.00000 cup. 250 mL shows 1.05669 cup. 1000 mL, one liter, shows 4.22675 cup.
Milliliters to cups reference table
Each value below is the converter result at five decimal places. Enter the same milliliters in the form above and the result should match. The 236.5882365 mL row is one cup exactly.
| Milliliters | U.S. cups |
|---|---|
| 15 | 0.06340 |
| 30 | 0.12680 |
| 50 | 0.21134 |
| 100 | 0.42268 |
| 125 | 0.52834 |
| 150 | 0.63401 |
| 200 | 0.84535 |
| 236.5882365 | 1.00000 |
| 250 | 1.05669 |
| 500 | 2.11338 |
| 750 | 3.17006 |
| 1000 | 4.22675 |
Milliliters to cups examples
Metric cup: 250 mL is 1.05669 cup on this page, a little more than one U.S. cup.
A bottle: 500 mL is 2.11338 cup, and 1000 mL is 4.22675 cup.
Nutrition-label cup: 21 CFR 101.9(b)(5)(viii) uses 240 mL for a cup. 240 mL shows 1.01442 cup, not 1.00000 cup. A tablespoon on that label is 15 mL, which shows 0.06340 cup.
Quick mental math (approximation)
To estimate cups, divide the milliliters by 240. Example: 240 mL ÷ 240 is about 1 cup. The exact result on this page is 1.01442 cup.
This shortcut is an approximation. It runs about 1.4 percent low, and it matches the nutrition-label cup rather than the 236.5882365 mL cup this converter uses. Use the converter or the exact formula for recipes, labels, or records.
Milliliters to cups FAQ
How many cups are in a milliliter?
One milliliter is a small fraction of a cup. The converter shows 0.00423 cup for 1 mL. One thousand milliliters is one liter and shows 4.22675 cup.
Is 250 milliliters one cup?
Not on this page. 250 mL shows 1.05669 cup. The cup here is 236.5882365 mL exactly. A 250 mL metric cup is a different household measure.
How do I convert cups to milliliters?
Multiply cups by 236.5882365. One cup displays as 236.58824 mL.