Water: cups to grams
Use the converter to change any amount of water between cups, grams, ounces and spoons, or jump to the charts below. Weights are for a standard US cup (236.6 ml).
Water: cups to grams
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 30 g | 1.04 oz |
| 1/4 cup | 59 g | 2.09 oz |
| 1/3 cup | 79 g | 2.78 oz |
| 1/2 cup | 118 g | 4.17 oz |
| 2/3 cup | 158 g | 5.56 oz |
| 3/4 cup | 177 g | 6.26 oz |
| 1 cup | 237 g | 8.35 oz |
| 1 1/4 cups | 296 g | 10.43 oz |
| 1 1/2 cups | 355 g | 12.52 oz |
| 2 cups | 473 g | 16.69 oz |
| 2 1/2 cups | 591 g | 20.86 oz |
| 3 cups | 710 g | 25.04 oz |
| 4 cups | 946 g | 33.38 oz |
Water: grams to cups
| Grams | Cups | How to measure it |
|---|---|---|
| 10 g | 0.04 cups | 2 tsp |
| 25 g | 0.11 cups | 1 1/2 tbsp |
| 50 g | 0.21 cups | 3 1/2 tbsp |
| 75 g | 0.32 cups | 1/3 cup |
| 100 g | 0.42 cups | 1/3 cup + 1 1/2 tbsp |
| 125 g | 0.53 cups | 1/2 cup |
| 150 g | 0.63 cups | 1/2 cup + 2 tbsp |
| 200 g | 0.85 cups | 3/4 cup + 1 1/2 tbsp |
| 250 g | 1.06 cups | 1 cup + 1 tbsp |
| 300 g | 1.27 cups | 1 1/4 cups |
| 400 g | 1.69 cups | 1 2/3 cups |
| 500 g | 2.11 cups | 2 cups + 2 tbsp |
| 750 g | 3.17 cups | 3 cups + 2 1/2 tbsp |
| 1000 g | 4.23 cups | 4 1/4 cups |
Tablespoons and teaspoons of water
How to measure water accurately
1 ml of water weighs 1 g, so a US cup (236.6 ml) of water weighs about 237 g.
Use a liquid measuring cup on a flat surface and read the line at eye level. Sticky syrups slide out cleanly from a lightly oiled cup.
For the most reliable result, weigh water on a digital kitchen scale: 237 g for every cup the recipe asks for.
Water conversion FAQ
How many grams is 1 cup of water?
1 cup of water weighs 237 grams (8.35 oz), using a standard US cup of 236.6 ml.
How many grams is 1/2 cup of water?
1/2 cup of water is 118 grams.
How many cups is 100 grams of water?
100 grams of water is 0.42 cups, which you can measure as 1/3 cup + 1 1/2 tbsp.
How many grams is 1 tablespoon of water?
1 tablespoon of water weighs about 15 grams, and 1 teaspoon about 4.9 grams.
Why doesn’t a cup of water weigh the same as a cup of water?
A cup measures volume, not weight. Water weighs about 237 g per cup, but water has a different density, so the same cup holds 237 g. That is why weighing gives more reliable results than cups.
Other amounts in grams
Source: Density of water (1 ml = 1 g). Last checked September 2026. Weights vary slightly by brand and how the cup is filled.
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