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Water — Grams in Cups
1 gram of water equals 0.00423 cups*
Density-based conversion — ingredient densities cross-checked against the FAO/INFOODS density database and USDA FoodData Central. The exact weight varies slightly with brand and packing. How we calculate · Reviewed August 21, 2026.
About water measurements
Water is the reference point for every other ingredient here, with a density of 1.0 g/ml, so one US cup is 237 g. It peaks near 1.000 g/ml at about 4°C and thins slightly as it warms, so hot water measured by volume weighs a touch less than cold.
Grams of water equivalent in cups?
FAQs on water weight to volume conversion
1 gram of water equals how many cups?
1 gram of water is equivalent 0.00423 cups.
How much is 0.00423 cups of water in grams?
0.00423 cups of water equals 1 gram.
Water: Grams to cups — common amounts
| Grams | Cups |
|---|---|
| 10 grams | 0.0423 cups |
| 25 grams | 0.106 cups |
| 50 grams | 0.211 cups |
| 100 grams | 0.423 cups |
| 150 grams | 0.634 cups |
| 200 grams | 0.845 cups |
| 250 grams | 1.06 cups |
| 300 grams | 1.27 cups |
| 500 grams | 2.11 cups |
| 1000 grams | 4.23 cups |
References:
Weight to Volume Conversions - Recipes
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.