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Water: Cups to Grams

Everyday weights for water - cups, tablespoons, teaspoons, and milliliters, plus the reverse lookup.

Grams

= 0.42 cups

Cups

= 237 g

Good to know: Exactly 236.59 g at room temperature - the reference for "1 cup of water".

Volume → Weight

1/4 cup	59.3 g	59.1 mL
1/3 cup	79 g	78.9 mL
1/2 cup	119 g	118 mL
1 cup	237 g	237 mL
1 1/2 cups	356 g	355 mL
2 cups	474 g	473 mL
3 cups	711 g	710 mL
4 cups	948 g	946 mL

Tablespoons → Grams

1 tbsp	14.8 g
2 tbsp	29.6 g
3 tbsp	44.4 g
4 tbsp	59.3 g
8 tbsp	119 g
16 tbsp	237 g

Teaspoons → Grams

1 tsp	4.94 g
2 tsp	9.88 g
3 tsp	14.8 g
4 tsp	19.8 g
8 tsp	39.5 g

Grams → Cups

25 g	0.11 cups
50 g	0.21 cups
100 g	0.42 cups
150 g	0.63 cups
200 g	0.84 cups
250 g	1.05 cups
500 g	2.11 cups
1000 g	4.22 cups

Volume converter (cups, ml, tbsp…) →Weight converter (g, kg, oz…) →

Quick Answer

One US cup of water weighs about 237 grams. That works out to 14.8 g per tablespoon and 4.94 g per teaspoon. Exactly 236.59 g at room temperature - the reference for "1 cup of water". Weights vary slightly by brand, moisture, and how tightly you pack - for precise baking, a kitchen scale beats volume measures.

Key Facts

1 cup water = 237 g
1 tablespoon = 14.8 g
1 teaspoon = 4.94 g
1/2 cup = 119 g
1 cup = 236.59 mL (volume does not change, weight does)
Values assume standard US measures (1 cup = 236.59 mL)

Frequently Asked Questions

How many grams in 1 cup of water?

About 237 grams, scoop-and-level for dry ingredients. Exactly 236.59 g at room temperature - the reference for "1 cup of water".

How many grams in a tablespoon of water?

One US tablespoon (15 mL) of water is about 14.8 grams. A teaspoon is 4.94 g.

Why does water weigh more (or less) than water?

Its density differs from water's 1 g/mL: 1 cup of water weighs 237 g versus 237 g for water. Denser liquids (honey, syrup) weigh more per cup; oils weigh less.

How many cups is 100 g of water?

100 g ÷ 237 g/cup ≈ 0.42 cups - about a little less than a full cup. The reverse table on this page covers 25-1000 g.

Should I weigh or measure by volume?

Weighing is more accurate - volume measures vary with how you scoop, pack, and level, and brands differ by 5-15%. For cookies and cakes where ratios matter, grams are the professional standard. The tables here convert either direction.