How many grams is one cup of water?

1 cup of water ≈ 237 g

Because one US cup of water weighs about 237 grams, one cup of it is roughly 237 grams. Water is the reference point for all conversions — one US cup is almost exactly 237 grams.

Recipes that list water in cups assume an average density. The figure above is a sensible typical value; if your recipe is sensitive, weigh on a kitchen scale — see our methodology.

Amount

From

Convert to

Substitution Info Unverified Details →

Water conversion chart

Water — cups to grams
Cups	Grams	Ounces	Tablespoons
⅛ cup	29.63 g	1.04 oz	2
¼ cup	59.25 g	2.09 oz	4
⅓ cup	79 g	2.79 oz	5.33
½ cup	118.5 g	4.18 oz	8
⅔ cup	158 g	5.57 oz	10.67
¾ cup	177.8 g	6.27 oz	12
1 cup	237 g	8.36 oz	16
1¼ cups	296.3 g	10.45 oz	20
1½ cups	355.5 g	12.54 oz	24
2 cups	474 g	16.72 oz	32
3 cups	711 g	25.08 oz	48

Other water conversions

100 g to cups 200 g to cups 250 g to cups 500 g to cups ¼ cup to grams ½ cup to grams 2 cups to grams

← Water converter All ingredients Cups to grams chart

* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.