US Cups to Milliliters Converter (cups to mL)
1 US cup = 236.5882365 mL exactly. Convert cups from American recipes to milliliters, including ⅓ and ⅔ cups, with a mL to cups chart.
Milliliter (mL) = US Cup (cup) × 236.5882365
US Cup (cup): The US customary cup is half a US pint: 8 US fluid ounces or 236.5882365 mL. US recipes use it; nutrition labels instead use a rounded 240 mL "legal cup".
Milliliter (mL): A milliliter is one thousandth of a liter and exactly the same volume as one cubic centimeter. There are 1,000 microliters in a milliliter and 1,000 milliliters in a liter.
| US Cup (cup) | Milliliter (mL) |
|---|---|
| 1 | 236.5882365 |
| 5 | 1182.9411825 |
| 10 | 2365.882365 |
| 25 | 5914.7059125 |
| 50 | 11829.411825 |
| 100 | 23658.82365 |
American recipes measure liquids and dry ingredients by the cup, while kitchen scales, metric measuring jugs and recipes elsewhere use milliliters. Sixteen tablespoons, or 8 US fluid ounces, fill one US cup, which comes to exactly 236.5882365 mL. The first chart includes ⅛, ¼, ⅓, ½, ⅔ and ¾ cup, so each spoon and cup in a measuring set can be matched to a mark on a metric jug.
Watch out for a second cup in US life: the "legal cup" of 240 mL that Nutrition Facts labels use for serving sizes. The two differ by about 1.4%, which is harmless in a soup but explains why a carton and a recipe can disagree by a few milliliters.
How to use this tool
- Type a value in the US Cup box to see it in milliliters, or type in the Milliliter box to convert the other way.
- Press ⇄ to swap the two units, or Load example for a typical value.
- Check the charts below for common values; for other units, open the Volume converter.
Formula
Milliliter (mL) = US Cup (cup) × 236.5882365
US Cup (cup) = Milliliter (mL) × 0.00422675283773
Both factors come from exact definitions: 1 milliliter = 0.00422675283773 US cups and 1 us cup = 236.5882365 milliliters (shown to 12 significant digits).
Example
Two conversions worked with the same factors the converter uses:
0.75 cup × 236.5882365 ≈ 177.441 mL
250 mL × 0.00422675283773 ≈ 1.05669 cup
US Cup to Milliliter chart
Common values from US cups to milliliters, rounded to four decimal places.
| US Cup (cup) | Milliliter (mL) |
|---|---|
| 0.125 | 29.5735 |
| 0.25 | 59.1471 |
| 0.3333 | 78.8627 |
| 0.5 | 118.2941 |
| 0.6667 | 157.7255 |
| 0.75 | 177.4412 |
| 1 | 236.5882 |
| 1.25 | 295.7353 |
| 1.5 | 354.8824 |
| 1.75 | 414.0294 |
| 2 | 473.1765 |
| 2.5 | 591.4706 |
| 3 | 709.7647 |
| 3.5 | 828.0588 |
| 4 | 946.3529 |
| 5 | 1,182.94 |
| 6 | 1,419.53 |
| 8 | 1,892.71 |
| 10 | 2,365.88 |
| 12 | 2,839.06 |
Milliliter to US Cup chart
The reverse direction for values people often look up.
| Milliliter (mL) | US Cup (cup) |
|---|---|
| 60 | 0.2536 |
| 80 | 0.3381 |
| 120 | 0.5072 |
| 160 | 0.6763 |
| 180 | 0.7608 |
| 200 | 0.8454 |
| 350 | 1.4794 |
| 400 | 1.6907 |
| 600 | 2.5361 |
| 1,000 | 4.2268 |
| 1,200 | 5.0721 |
Cup amounts printed on US packaging
| Item | US Cup (cup) | Milliliter (mL) |
|---|---|---|
| Quarter-cup measure from a standard set | 0.25 | 59.1471 |
| Stick of butter, wrapper marked as ½ cup | 0.5 | 118.2941 |
| Can of evaporated milk (12 fl oz) | 1.5 | 354.8824 |
| Pint carton of heavy cream | 2 | 473.1765 |
| Quart carton of broth | 4 | 946.3529 |
| Half-gallon carton of milk | 8 | 1,892.71 |
Quick mental estimate
Treat a cup as 250 mL minus a tablespoon, or 235 mL: 2 cups → 470 mL. The real cup is 236.59 mL, so the estimate runs only about 0.7% low.
Use the converter or the charts when the exact figure matters.
The two units
US Cup (cup): The US customary cup is half a US pint: 8 US fluid ounces or 236.5882365 mL. US recipes use it; nutrition labels instead use a rounded 240 mL "legal cup".
Milliliter (mL): A milliliter is one thousandth of a liter and exactly the same volume as one cubic centimeter. There are 1,000 microliters in a milliliter and 1,000 milliliters in a liter.
Frequently asked questions
Is a US cup 240 mL or 236.6 mL?
Both numbers are official in different places. Recipes and measuring cups follow the customary cup of 236.5882365 mL, while 21 CFR 101.9 tells food labels to count a cup as 240 mL. For cooking, the gap of under a teaspoon per cup does not matter.
How does a US cup compare with metric and Japanese cups?
A metric cup, used in Australia, New Zealand and Canada, holds 250 mL, about 6% more than a US cup. A Japanese measuring cup holds 200 mL, about 15% less. The country a recipe comes from tells you which cup it means.
Should I measure flour in cups or milliliters?
For baking, weigh it if you can. The volume of a cup is fixed, but the flour in it is not: a spooned and leveled cup holds noticeably less than one scooped straight from the bag. The cups of flour to grams converter uses a standard 125 g per cup.
How precise is the result?
The converter uses the exact definitions above with browser floating-point arithmetic and shows up to 12 significant digits. The charts round to four decimal places for reading.
Sources
Last updated:
Page address with these inputs: https://kakao.mobile/tools/us-cup-to-milliliter-converter/
Cite or embed this tool
kakaoCalc. (2026, November 8). US Cups to Milliliters Converter (cups to mL). https://kakao.mobile/tools/us-cup-to-milliliter-converter/
“US Cups to Milliliters Converter (cups to mL).” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/us-cup-to-milliliter-converter/.
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