Cups to mL Calculator
Convert cups to millilitres, or millilitres to cups, instantly. Supports US, Metric, Imperial (UK) and US Legal cup standards, so your recipes come out right every time.
Convert Cups and Millilitres
Enter an amount, choose whether you’re converting cups to mL or mL to cups, and pick the cup standard your recipe uses.
Conversion Details
Enter an amount and choose your units and standard
Conversion Result
Updates automatically as you type
Common Cup Measurements in mL
A quick-glance table of common cup fractions converted to millilitres across each cup standard.
| Cups | US Cup | US Legal Cup | Metric Cup | Imperial Cup |
|---|---|---|---|---|
| 1/8 cup | 30 mL | 30 mL | 31 mL | 36 mL |
| 1/4 cup | 59 mL | 60 mL | 63 mL | 71 mL |
| 1/3 cup | 79 mL | 80 mL | 83 mL | 95 mL |
| 1/2 cup | 118 mL | 120 mL | 125 mL | 142 mL |
| 2/3 cup | 158 mL | 160 mL | 167 mL | 189 mL |
| 3/4 cup | 177 mL | 180 mL | 188 mL | 213 mL |
| 1 cup | 237 mL | 240 mL | 250 mL | 284 mL |
| 1.5 cups | 355 mL | 360 mL | 375 mL | 426 mL |
| 2 cups | 473 mL | 480 mL | 500 mL | 568 mL |
| 4 cups | 946 mL | 960 mL | 1000 mL | 1137 mL |
Cups to mL FAQ
Everything you need to know about converting between cups and millilitres for cooking and baking.
It depends on the standard used. A US customary cup is 236.59 mL, a US legal cup is 240 mL, a metric cup is 250 mL, and an Imperial (UK) cup is 284.13 mL. Select the correct standard in the calculator for an accurate result.
A US customary cup measures 236.59 millilitres, while a metric cup, used in Australia, New Zealand and parts of Europe, measures exactly 250 millilitres. The difference is small but can affect precise baking recipes.
No. Recipes from the UK more commonly use grams and millilitres rather than cups, but where an Imperial cup is referenced it equals 284.13 mL, notably larger than a US customary cup at 236.59 mL.
Cup measurements vary because different countries adopted different standard volumes historically. Always check which cup standard a recipe was written for, especially for baking, where precision matters most.