Instant Unit Conversion
Convert Cups (US) to Milliliters (cup to mL)
Exact formula, conversion factors, live calculator, and reference charts for cups (us) to milliliters.
Method reviewed:Exact defined factors — international yard and pound (1959), US customary gallon and cup, SI — the values NIST SP 811 lists · reviewed September 2026
1 US customary cup is equal to exactly 236.5882365 millilitres. To convert cups to millilitres, multiply by 236.5882365.
Live Cups (US) to Milliliters Calculator
mL = cups × 236.5882365Open full volume converter →Cups (US) to Milliliters Conversion Table
Quick reference conversion chart from 1 to 100 cups (us).
| Cups (US) (cup) | Milliliters (mL) | Mathematical Formula |
|---|---|---|
| 1 cup | 236.5882 mL | 1 × 236.588 |
| 2 cup | 473.1765 mL | 2 × 236.588 |
| 5 cup | 1,182.9412 mL | 5 × 236.588 |
| 10 cup | 2,365.8824 mL | 10 × 236.588 |
| 15 cup | 3,548.8235 mL | 15 × 236.588 |
| 20 cup | 4,731.7647 mL | 20 × 236.588 |
| 25 cup | 5,914.7059 mL | 25 × 236.588 |
| 50 cup | 11,829.4118 mL | 50 × 236.588 |
| 75 cup | 17,744.1177 mL | 75 × 236.588 |
| 100 cup | 23,658.8237 mL | 100 × 236.588 |
Frequently Asked Questions
How many mL is half a cup?
Half a US cup is 118.3 mL.
Is a cup of flour the same as a cup of water?
The same volume, but not the same weight. A cup is a measure of space; 240 mL of flour weighs about 120 g and the same volume of water weighs about 237 g.
Why do cup measurements vary by country?
Because the cup was never standardised internationally. The US kept a customary cup, Australia and New Zealand adopted a round 250 mL, and the UK largely abandoned cups for scales.