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1 cup of water in grams

1 cup of water = 237 g
8.36 oz · 237 ml of volume

1 cup × 236.6 g per cup = 237 g

A cup of water weighs 236.6 g, so 1 cup of it comes to 237 g. That figure is particular to water: a cup is a volume and a gram is a mass, and the only thing connecting them is how heavy the ingredient is for its bulk. For comparison, a cup of all-purpose flour is 120 g and a cup of granulated white sugar is 198 g. The source line is "1 cup = 236.6 g", from USDA FoodData Central.

Convert any amount

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Result
1 cup of water ≈ 237 g (8.3 oz)
Weight
236.6 g
Cups
1 cup
Tablespoons
16 tbsp
Teaspoons
48 tsp
Milliliters
236.6 mL
Fluid ounces
8 fl oz
Assumptions
  • US customary cup (236.6 mL); spooned-and-levelled dry ingredients.
  • Weights are typical values and vary a few percent by brand, humidity and packing.
Grams per cup, ½ cup, ¼ cup and tablespoon
Ingredient1 cup (g)½ cup (g)¼ cup (g)1 tbsp (g)
All-purpose flour12060307.5
Bread flour12060307.5
Cake flour12060307.5
Self-rising flour11357287.1
Whole wheat flour11357287.1
Pastry flour10653276.6
Almond flour9648246
Coconut flour12864328
Rye flour (medium)10653276.6
Spelt flour9950256.2
Semolina flour163824110.2
Cornmeal (whole)13869358.6
Gluten-free all-purpose flour15678399.8
Granulated white sugar198995012.4
Brown sugar, packed2131075313.3
115 of 62

Weights are for spooned-and-levelled dry ingredients (King Arthur Baking). Scooping flour straight from the bag packs it and can add 20–30%.

US volume equivalents
MeasureEquals
1 tablespoon3 teaspoons = ½ fl oz = 14.8 mL
¼ cup4 tbsp = 2 fl oz = 59 mL
⅓ cup5⅓ tbsp = 79 mL
½ cup8 tbsp = 4 fl oz = 118 mL
1 cup16 tbsp = 8 fl oz = 237 mL
1 pint2 cups = 473 mL
1 quart4 cups = 946 mL
1 stick of butter½ cup = 8 tbsp = 113 g = 4 oz

Water: every measure in grams

WaterGrams
1 cup237 g
2 cups473 g
3 cups710 g
½ cup118 g
⅓ cup79 g
¼ cup59 g
⅔ cup158 g
¾ cup177 g
1 tablespoon14.8 g
2 tablespoons30 g
1 teaspoon4.9 g

Weights from USDA FoodData Central.

Questions

How many grams is 1 cup of water?
237 g, or 8.36 oz. A full cup of water is 236.6 g.
How many grams are in a cup of water?
236.6 g. Source: USDA FoodData Central, "1 cup = 236.6 g".
Why can't I just use one cups-to-grams number?
Because a cup measures volume and a gram measures mass. A cup of flour is 120 g and a cup of honey is 336 g — nearly three times as much, in the same cup. The conversion is different for every ingredient.

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1 cup of water = 237 g. Source: https://www.calculateitnow.dev/1-cup-of-water-in-grams