Cups to ml: How Many Milliliters in a Cup?
1 US cup = 236.6 ml. Nutrition labels round it to 240 ml; a metric cup is 250 ml.
A US customary cup is 236.6 milliliters. For everyday cooking you can use 240 ml, the figure on US nutrition labels, and the difference is under 2%. Recipes from Australia, New Zealand and Canada often use a 250 ml metric cup, so check where a recipe comes from if it is sensitive to liquid.
Cups to milliliters
| Cups | Ml | Fl oz |
|---|---|---|
| ¼ cup | 59.1 ml | 2 fl oz |
| ⅓ cup | 78.9 ml | 2.67 fl oz |
| ½ cup | 118.3 ml | 4 fl oz |
| ⅔ cup | 157.7 ml | 5.33 fl oz |
| ¾ cup | 177.4 ml | 6 fl oz |
| 1 cup | 236.6 ml | 8 fl oz |
| 1½ cups | 354.9 ml | 12 fl oz |
| 2 cups | 473.2 ml | 16 fl oz |
| 2½ cups | 591.5 ml | 20 fl oz |
| 3 cups | 709.8 ml | 24 fl oz |
| 4 cups | 946.4 ml | 32 fl oz |
Which cup does your recipe use?
American recipes use the US customary cup of 236.6 ml. Australian, New Zealand and Canadian recipes often use a 250 ml metric cup, and older British recipes sometimes use an imperial cup of about 284 ml. For a cup of flour the difference between 237 and 250 ml is about a tablespoon, so it rarely matters for liquids but can matter in baking. If a recipe lists both cups and grams, trust the grams.
Common questions
How many ml are in ½ cup?
½ cup = 118.3 ml.
How many ml are in ¾ cup?
¾ cup = 177.4 ml.
How many ml are in 1½ cups?
1½ cups = 354.9 ml.
How many ml are in ⅔ cup?
⅔ cup = 157.7 ml.
How many ml are in ⅓ cup?
⅓ cup = 78.9 ml.
How many ml is a cup of water?
A cup of water is 236.6 ml by volume and weighs about 237 g.