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CrumbCalc

Cups to Grams: Water

One US cup of water weighs 237 grams. Every other measure is below, in both directions.

1 cup of water

237 g

≈ 8.36 oz

Data & method: Density measured rather than taken from the King Arthur chart — see “Where this number comes from” below. Every number is checked by an automated test against its source. How we calculate →

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Result

237 g

Water: 237 g per cup

Recipe now in grams? Next: scale it to your batch →

Water — cups to grams chart

Water Grams Ounces
¼ cup 59 g 2.09 oz
⅓ cup 79 g 2.79 oz
½ cup 119 g 4.18 oz
⅔ cup 158 g 5.57 oz
¾ cup 178 g 6.27 oz
1 cup 237 g 8.36 oz
1½ cups 356 g 12.54 oz
2 cups 474 g 16.72 oz
3 cups 711 g 25.08 oz
1 tablespoon 15 g 0.52 oz
1 teaspoon 4.9 g 0.17 oz

Grams to cups: water

Working the other way — a recipe in grams, and cups are what you have in the drawer:

Grams of water Cups (approx.)
50 g ¼ cups
100 g 0.42 cups
125 g ½ cups
200 g ⅚ cups
250 g 1.05 cups
500 g 2⅛ cups

Where this number comes from

Most of our weights are the King Arthur Baking chart figure, unchanged. This one is not, and it is worth saying why: Physical density: 236.588 ml × ~1.00 g/ml. King Arthur's 227 g comes from reading 8 fl oz as 8 weight oz.

We would rather publish the number your scale will agree with and show our reasoning than quote a familiar chart that rounds the physics away. Every value we don't depart on is locked to the chart by a test, so this list stays short and deliberate — you can read all of them on the methodology page.

Frequently Asked Questions

How many grams is 1 cup of water?

One US cup of water weighs 237 grams (about 8.36 ounces). Physical density: 236.588 ml × ~1.00 g/ml. King Arthur's 227 g comes from reading 8 fl oz as 8 weight oz. We publish the reason rather than the chart figure because it is what your scale will actually read.

How many grams is a tablespoon of water?

A tablespoon of water is about 15 grams, since one cup holds 16 tablespoons. A teaspoon is about 4.9 grams.

How many cups is 250 g of water?

250 grams of water is about 1.05 cups (250 ÷ 237). Weighing is more reliable than measuring by cup, because how you fill the cup changes the amount.