Water Grams to Cups Converter
One US cup of water weighs about 237 g, so 200 g of it is 3/4 cup + 1 1/2 tbsp.
Use the converter to change grams to cups or cups to grams for water. Weights come from the US customary cup (236.588 ml) and the density of water, checked 31 Oct 2026.
- 1 cup
- 237 g
- 1/2 cup
- 119 g
- 1/4 cup
- 59 g
- 1 tablespoon
- 15 g
How to convert grams to cups for water
Three steps, using 237 g per cup.
- 1Find the weight of one cup
One US cup of water is 237 g.
- 2Divide your grams by 237
Cups = grams ÷ 237. For cups to grams, multiply the cups by 237 instead.
- 3Turn the decimal into a kitchen measure
Round to a measure you can scoop, such as 1/4, 1/3, 1/2 or 3/4 cup, with spoons for the rest.
Worked example
Water grams to cups chart
Each row converts grams of water to cups using 237 g per cup.
| Grams | Cups (kitchen measure) | Cups (decimal) | Tablespoons |
|---|---|---|---|
| 25 g | 1 1/2 tbsp | 0.11 | 1.69 |
| 50 g | 3 1/2 tbsp | 0.21 | 3.38 |
| 75 g | 1/4 cup + 1 tbsp | 0.32 | 5.06 |
| 100 g | 1/4 cup + 3 tbsp | 0.42 | 6.75 |
| 125 g | 1/2 cup + 1/2 tbsp | 0.53 | 8.44 |
| 150 g | 5/8 cup | 0.63 | 10.13 |
| 175 g | 3/4 cup | 0.74 | 11.81 |
| 200 g | 3/4 cup + 1 1/2 tbsp | 0.84 | 13.5 |
| 250 g | 1 cup + 1 tbsp | 1.05 | 16.88 |
| 300 g | 1 1/4 cups | 1.27 | 20.25 |
| 400 g | 1 2/3 cups | 1.69 | 27 |
| 500 g | 2 1/8 cups | 2.11 | 33.76 |
Water cups to grams chart
How many grams of water are in common cup and spoon measures.
| Measure | Grams | Ounces |
|---|---|---|
| 1/8 cup | 30 g | 1.04 oz |
| 1/4 cup | 59 g | 2.09 oz |
| 1/3 cup | 79 g | 2.79 oz |
| 1/2 cup | 119 g | 4.18 oz |
| 2/3 cup | 158 g | 5.57 oz |
| 3/4 cup | 178 g | 6.27 oz |
| 1 cup | 237 g | 8.36 oz |
| 1 1/2 cups | 356 g | 12.54 oz |
| 2 cups | 474 g | 16.72 oz |
| 1 tablespoon | 15 g | 0.52 oz |
| 1 teaspoon | 4.9 g | 0.17 oz |
How many grams are in a cup of water?
A US cup (236.6 ml) of water weighs about 237 g (1 US cup is 236.588 ml and water is about 1 g per ml). That is about 8.36 oz, or 15 g per tablespoon.
Weight source: US customary cup (236.588 ml) and the density of water, checked 31 Oct 2026. Weights are averages and shift a little with brand, humidity and how the cup is filled, so weigh your ingredients when accuracy matters. How we measure
Facts and tips for measuring water
Key figures
- Weight of 1 cup
- 237 g
- Weight of 1 tablespoon
- 15 g
- Ounces in 1 cup
- 8.36 oz
- A cup compared with flour
- 98% heavier than flour
- Rank by weight per cup
- 9th heaviest of 51
Measuring tips
- Use a liquid measuring cup on a flat surface and read it at eye level. Water weighs about 237 g per US cup.
- Weigh in grams on a kitchen scale for the most accurate result, and set the scale to zero (tare) with the bowl on it.
- This site uses the US cup of 236.6 ml. A metric cup is 250 ml, so recipes from the UK, Australia or New Zealand can differ.
- Check whether the recipe means the ingredient sifted, packed, melted or cooked, because that changes the weight per cup.
Frequently Asked Questions (FAQs)
Quick answers: Grams to cups for water
How many grams are in 1 cup of water?
One US cup of water weighs about 237 g, according to the US customary cup (236.588 ml) and the density of water (1 US cup is 236.588 ml and water is about 1 g per ml). Brand and how you fill the cup can shift this by a few grams.
How many cups is 100 grams of water?
100 g of water is 0.42 cups, which is about 1/4 cup + 3 tbsp.
How many grams is half a cup of water?
Half a cup of water is about 119 g.
Why does grams to cups depend on the ingredient?
Grams measure weight and cups measure volume. A cup holds different weights of different ingredients, so each one needs its own grams per cup.