Convert cups to ml

1 cup (us) = 236.58824 mL

Milliliter (mL)
236.5882365

1 cup = 236.588 mL · type math like (12*4)+6.5

Cups to milliliters is the classic baking conversion. American recipes measure flour, sugar and liquids by the cup, while kitchens elsewhere use measuring jugs marked in milliliters, so anyone cooking from a US blog needs it.

Common baking amounts convert as follows: ¼ cup is 59.1 ml, ⅓ cup is 78.9 ml, ½ cup is 118.3 ml, ⅔ cup is 157.7 ml and ¾ cup is 177.4 ml. Measuring jugs outside the US are often marked every 25 or 50 ml, so many cooks round ⅓ cup to 80 ml and ¾ cup to 175 ml.

For dry ingredients, volume is less reliable. One US cup of granulated sugar weighs about 200 g, brown sugar packed about 220 g, and all-purpose flour 120–130 g depending on how it is scooped. If a US recipe is critical, convert to grams with a scale.

Butter is usually measured in sticks in the US. One stick is ½ cup, which is 118.3 ml or about 113 g by weight.

Rice cookers come with their own cup, which is usually 180 ml, not the US cup. If a recipe calls for 2 rice cups, that is 360 ml, while 2 US cups are 473 ml. Mixing them up changes the water ratio.

Coffee makers often use a 'cup' of only 5 or 6 fl oz, which is 148–177 ml, not the 8 fl oz US cup. A 12-cup coffee maker therefore holds about 1.8 L, not 2.8 L.

Smoothie recipes in the US often use 1 cup of milk or juice, which is 236.6 ml.

Pancake recipes calling for 1¼ cups of milk need 295.7 ml.

A quick check: one US cup is just under 240 ml, so 3 cups should come out close to 710 ml (709.8 exactly). If your result is exactly 750 ml, you used the 250 ml metric cup instead. If the answer is smaller than the cup figure, the direction is wrong. For liquids, a measuring jug marked in 25 ml steps is accurate enough for almost every recipe.

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The formula

mL = cup × 236.5882365

Reverse: 1 mL = 0.0042267528 cup.

Worked example

Convert 2½ US cups to milliliters.

  1. Convert the fraction: 2½ = 2.5.
  2. Use 1 US cup = 236.5882 ml.
  3. Multiply: 2.5 × 236.5882 = 591.47 ml.

Answer: 2½ cups = 591.5 ml.

cups to ml conversion table

cupmL
¼ cup59.147059 mL
½ cup118.29412 mL
¾ cup177.44118 mL
1 cup236.58824 mL
2 cup473.17647 mL
3 cup709.76471 mL
4 cup946.35295 mL
5 cup1 182.9412 mL
6 cup1 419.5294 mL
7 cup1 656.1177 mL
8 cup1 892.7059 mL
9 cup2 129.2941 mL
10 cup2 365.8824 mL
11 cup2 602.4706 mL
12 cup2 839.0588 mL
13 cup3 075.6471 mL
cupmL
14 cup3 312.2353 mL
15 cup3 548.8235 mL
16 cup3 785.4118 mL
17 cup4 022 mL
18 cup4 258.5883 mL
19 cup4 495.1765 mL
20 cup4 731.7647 mL
25 cup5 914.7059 mL
30 cup7 097.6471 mL
40 cup9 463.5295 mL
50 cup11 829.412 mL
75 cup17 744.118 mL
100 cup23 658.824 mL
250 cup59 147.059 mL
500 cup118 294.12 mL
1 000 cup236 588.24 mL

Real-world examples

Milk in pancakes

1.5 cups of milk is 354.9 ml.

Half a cup of oil

½ cup is 118.3 ml.

Stock in a soup

4 cups of stock is 946.4 ml, almost a liter.

Common mistakes

Mixing cup standards

Australian, Canadian and UK metric cups are 250 ml; the US cup is 236.6 ml. Across 4 cups that is a 54 ml difference.

Converting dry ingredients by volume

1 cup of flour weighs about 120–130 g depending on how it is scooped. For baking accuracy, weigh it.

Using a coffee mug

Mugs hold 300–350 ml. A recipe cup is a specific measure.

What is a US cup?

The US customary cup used in this converter is half a US pint: 8 US fluid ounces, or 236.5882365 ml. US nutrition labels use a slightly rounder legal cup of 240 ml.

Origin. Cup measures spread through American cookbooks in the late 1800s, popularised by Fannie Farmer's 1896 Boston Cooking-School Cook Book with its level-measure method.

Used today. US recipes and measuring cup sets.

What is a milliliter?

A milliliter is one thousandth of a liter, exactly one cubic centimeter (cm³).

Origin. Metric unit since 1795.

Used today. Measuring jugs, bottles and most recipes outside the US.

Frequently asked questions

Is a cup 250 ml?

In Australia and Canada's metric recipes, yes. The US customary cup is 236.6 ml.

How many ml in ¾ cup?

177.4 ml.

How many ml in ⅓ cup?

78.9 ml.

What does 'legal cup' mean on US labels?

FDA nutrition labels define a cup as exactly 240 ml for serving sizes.

Convert ml to cups →

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