Convert US cups to Milliliters
1 US cup is 236.59 ml. One US cup is exactly 236.5882365 milliliters.
One US cup is 236.58824 milliliters. To convert US cups to milliliters, multiply by 236.58824; to go the other way, divide by 236.58824 or multiply by 0.0042267528. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 130. Eight US fluid ounces, about 236.6 ml.
Factor checked against the defining standard · How we check
- US cups × 236.58824
1 * 236.58824236.588 ml
1 US cup in every volume unit
| Unit | Value | Exact factor |
|---|---|---|
| US teaspoons | 48 tsp | × 48 |
| US tablespoons | 16 tbsp | × 16 |
| US fluid ounces | 8 fl oz | × 8 |
| US cups (as entered) | 1 cup | — |
| US pints | 0.5 pt | × 0.5 |
| US quarts | 0.25 qt | × 0.25 |
| US gallons | 0.0625 gal | × 0.0625 |
| milliliters | 236.5882365 ml | × 236.5882365 |
| liters | 0.2365882365 L | × 0.2365882365 |
| imperial gallons | 0.05204213654 gal (UK) | × 0.0520421365393 |
| imperial quarts | 0.2081685462 qt (UK) | × 0.208168546157 |
| imperial pints | 0.4163370923 pt (UK) | × 0.416337092314 |
| imperial fluid ounces | 8.326741846 fl oz (UK) | × 8.32674184629 |
| imperial gills | 1.665348369 gi (UK) | × 1.66534836926 |
| cubic millimetres | 236,588.2365 mm³ | × 236,588.2365 |
| cubic centimetres | 236.5882365 cm³ | × 236.5882365 |
| cubic inches | 14.4375 in³ | × 14.4375 |
| cubic feet | 0.008355034722 ft³ | × 0.00835503472222 |
| cubic yards | 0.0003094457305 yd³ | × 0.000309445730453 |
| cubic metres | 0.0002365882365 m³ | × 0.0002365882365 |
Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: US cups to millilitres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.
How do you convert US cups to milliliters? The converter and the working
- 1.Take the measurement in US cups.
- 2.Multiply by 236.58824 — that is how many milliliters fit in one US cup.
- 3.To go back the other way, divide by 236.58824, or multiply by 0.0042267528.
Worked example: 25 US cups to milliliters
- Formula
- cup × 236.58824 = ml
- Arithmetic
- 25 × 236.58824 = 5,914.71 ml
- Answer
- 25 cup = 5,914.71 ml
The factor is rounded for display; the figure above is computed from the full value.
US cups to milliliters conversion table
| US cups | Milliliters |
|---|---|
| 1 cup | 236.59 ml |
| 2 cup | 473.18 ml |
| 3 cup | 709.76 ml |
| 4 cup | 946.35 ml |
| 5 cup | 1,182.94 ml |
| 6 cup | 1,419.53 ml |
| 7 cup | 1,656.12 ml |
| 8 cup | 1,892.71 ml |
| 9 cup | 2,129.29 ml |
| 10 cup | 2,365.88 ml |
| 12 cup | 2,839.06 ml |
| 15 cup | 3,548.82 ml |
| 20 cup | 4,731.76 ml |
| 25 cup | 5,914.71 ml |
| 50 cup | 11,829.41 ml |
| 100 cup | 23,658.82 ml |
| 200 cup | 47,317.65 ml |
| 300 cup | 70,976.47 ml |
| 500 cup | 118,294.12 ml |
| 1000 cup | 236,588.24 ml |
| 2000 cup | 473,176.47 ml |
| 5000 cup | 1,182,941.18 ml |
| 10000 cup | 2,365,882.36 ml |
Three cups are in circulation
The US customary cup is 236.588 ml, the US legal cup used on nutrition labels is exactly 240 ml, and the metric cup used in Australia and much of Europe is 250 ml. This page uses the US customary cup. Across a recipe the six per cent between the extremes is the difference between a cake and a brick, which is why baking recipes that travel are written by weight.
NIST Handbook 44, Appendix C — general tables of units of measurement
What is a US cup?
Eight US fluid ounces, about 236.6 ml. The "legal" cup on nutrition labels is a rounded 240 ml.
What is a milliliter?
One thousandth of a liter, and exactly one cubic centimeter.
How many milliliters are in a US cup?
One US cup is 236.58824 milliliters. Going the other way, one milliliter is 0.0042267528 US cups. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every volume unit here
The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a US cup.
Cite this page
- APA
- Rule Calculator. (2026). Convert US cups to milliliters. Rule Calculator. https://rulecalculators.com/convert/cup-to-milliliter
- MLA
- "Convert US cups to milliliters." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/cup-to-milliliter.
- Chicago
- Rule Calculator. "Convert US cups to milliliters." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/cup-to-milliliter.
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Questions people actually ask
- How many milliliters are in a US cup?
- 236.58824. One thousandth of a liter, and exactly one cubic centimeter.
- How do I convert milliliters back to US cups?
- Divide by 236.58824, or multiply by 0.0042267528 — they are the same operation.
Other volume conversions
Milliliters to US cups — the same conversion the other way.