Cups to ML Converter
Free cups to ml converter — turn US cups into millilitres (1 cup = 236.588 mL) for recipes. Handles half and quarter cups, no signup.
About the Cups to ML Converter
Convert cups to millilitres using the US customary cup of 236.588 mL — the cup used in American recipes. Enter any number of cups, including fractions as decimals (0.5 for half a cup, 0.25 for a quarter), and get the millilitre equivalent instantly, in both directions.
This is a kitchen essential: most of the world measures liquids in millilitres, while American cookbooks, food blogs and YouTube recipes use cups. One cup of milk is 236.6 mL, half a cup is 118.3 mL, and 2 cups make 473.2 mL — just under half a litre.
Note that not all cups are equal: the metric cup used in Australia and NZ is 250 mL, and the US 'legal' cup on nutrition labels is 240 mL. This tool uses the US customary cup, and the note under the result explains the difference so you can adjust for other standards.
How to Use the Cups to ML Converter
- 1Enter the number of cups — use decimals for fractions (0.5 = ½ cup).
- 2Read the millilitre result instantly (1 cup = 236.59 mL).
- 3Type millilitres instead to convert back to cups.
- 4Use the table for the common recipe amounts from ¼ to 4 cups.
Frequently Asked Questions
How many ml in a cup?
One US customary cup is 236.588 mL, commonly rounded to 237 mL or simply 240 mL. A metric cup (Australia, NZ) is 250 mL and a UK recipe cup is usually also taken as 250 mL.
How many ml is half a cup?
Half a US cup is 118.3 mL (about 120 mL). A quarter cup is 59.1 mL and three-quarters of a cup is 177.4 mL.
How many ml is 2 cups?
2 US cups equal 473.18 mL — just under half a litre. 3 cups are 709.8 mL and 4 cups (1 US quart) are 946.4 mL.
Is 250 ml one cup?
250 mL is exactly one metric cup, used in Australian and New Zealand recipes. In US measures, 250 mL is about 1.057 cups — close enough for most cooking, but noticeable in baking if the recipe is precise.
Do dry and liquid cups hold the same volume?
Yes — a cup is 236.588 mL whether it holds flour or water. Dry and liquid measuring cups differ only in shape, to make levelling dry ingredients and reading liquid levels easier. Weight per cup varies by ingredient, which is why bakers prefer grams.