How many grams are in a cup of water?
A US cup (236.6 ml) of water weighs about 237 grams, liquid. Published charts differ slightly, from 237 to 237 grams, because of how the ingredient is scooped and how finely it is ground or packed. The figure here is the average of two independent sources.
| Amount | Grams | Ounces |
|---|---|---|
| 1 cup | 237 g | 8.36 oz |
| 2 cup | 474 g | 16.7 oz |
| 3 cup | 711 g | 25.1 oz |
| 4 cup | 948 g | 33.4 oz |
| 1/8 cup | 29.6 g | 1.04 oz |
| 1/4 cup | 59.3 g | 2.09 oz |
| 1/3 cup | 78.9 g | 2.78 oz |
| 1/2 cup | 119 g | 4.18 oz |
| 2/3 cup | 158 g | 5.58 oz |
| 3/4 cup | 178 g | 6.27 oz |
| 1 1/2 cup | 356 g | 12.5 oz |
Tablespoons and teaspoons of water
| Amount | Grams | Ounces |
|---|---|---|
| 1 tablespoon | 14.8 g | 0.52 oz |
| 2 tablespoons | 29.6 g | 1.04 oz |
| 1 teaspoon | 4.94 g | 0.17 oz |
| 3 teaspoons | 14.8 g | 0.52 oz |
A US cup holds 16 tablespoons or 48 teaspoons, so one tablespoon of water is about 14.8 grams.
Grams of water to cups
| Grams | Cups | Tablespoons |
|---|---|---|
| 25 g | 0.11 cups | 1.69 tablespoons |
| 50 g | 0.21 cups | 3.38 tablespoons |
| 100 g | 0.42 cups | 6.75 tablespoons |
| 125 g | 0.53 cups | 8.44 tablespoons |
| 150 g | 0.63 cups | 10.1 tablespoons |
| 200 g | 0.84 cups | 13.5 tablespoons |
| 250 g | 1.05 cups | 16.9 tablespoons |
| 500 g | 2.11 cups | 33.8 tablespoons |
Metric cups and other cup sizes
The figures above use the US customary cup of 236.6 ml. A metric cup is 250 ml, so a metric cup of water weighs about 250 grams. UK recipes that say "cup" usually mean a 250 ml metric cup, which is why weighing in grams is more reliable than measuring by volume.
Measuring water accurately
Always use a clear liquid measuring cup placed on a flat surface and read the water level at eye height. Water density changes very slightly with temperature, but this rarely matters outside scientific contexts. Since one milliliter of water weighs exactly one gram, weighing is perfectly straightforward.
More baking conversions
- All Purpose Flour cups to grams: 1 cup is 120 g
- Granulated Sugar cups to grams: 1 cup is 200 g
- Brown Sugar cups to grams: 1 cup is 220 g
- Powdered Sugar cups to grams: 1 cup is 120 g
- Butter cups to grams: 1 cup is 227 g
- Honey cups to grams: 1 cup is 340 g
- Milk cups to grams: 1 cup is 242 g
- Vegetable Oil cups to grams: 1 cup is 219 g
FAQ
How many grams are in 1 cup of water?
One US cup of water is about 237 grams (8.36 oz).
How many cups is 100 grams of water?
100 grams of water is about 0.42 cups, or 6.75 tablespoons.
Is a cup of water the same in every country?
No. A US cup is 236.6 ml, a metric cup is 250 ml, and older UK recipes may use a larger imperial cup. A metric cup of water is about 250 grams.
More cooking conversions
- Milk: previous page
- Vegetable Oil: next page
- Cooking conversions: cups to grams: the full list