2 1/2 cups of water in grams
2 1/2 cups of water ≈ 593 grams
That is about 20.9 ounces. One US cup of water weighs 237 g.
Why this number is approximate
One US cup is 236.6 ml, and water is almost exactly 1 g per ml, so cups and grams are interchangeable here.
Water conversion table
| Cups | Grams | Ounces | Tablespoons |
|---|---|---|---|
| 1/4 | 59.3 g | 2.09 oz | 4 |
| 1/3 | 79 g | 2.79 oz | 5.33 |
| 1/2 | 119 g | 4.18 oz | 8 |
| 2/3 | 158 g | 5.57 oz | 10.7 |
| 3/4 | 178 g | 6.27 oz | 12 |
| 1 | 237 g | 8.36 oz | 16 |
| 1 1/2 | 356 g | 12.5 oz | 24 |
| 2 | 474 g | 16.7 oz | 32 |
| 2 1/2 | 593 g | 20.9 oz | 40 |
| 3 | 711 g | 25.1 oz | 48 |
| 4 | 948 g | 33.4 oz | 64 |
Weigh it if you can
Volume measures are convenient but imprecise — the same cup can hold noticeably different amounts depending on how the ingredient is packed, how humid the room is, and whether it was sifted. A digital kitchen scale removes the variable entirely, which is why professional and European recipes give weights. If you bake regularly, a scale is the cheapest accuracy upgrade available.
Frequently asked questions
How many grams is 2 1/2 cups of water?
About 593 grams, or 20.9 ounces.
How many grams in a cup of water?
Roughly 237 grams per US cup.
Is a US cup the same as a metric cup?
No. A US customary cup is 236.6 ml; a metric cup — used in Australia, New Zealand and much of Europe — is 250 ml, about 6% larger. An imperial cup, still seen in older British recipes, is 284 ml. For a cup of water that is a difference of roughly 13.4 g between US and metric.
Should I sift before or after measuring?
It matters, and recipes are often ambiguous. "1 cup sifted flour" means sift first, then measure — which gives less flour than "1 cup flour, sifted", where you measure first. When in doubt, weigh.
Other amounts
- 1/4 cups of water to grams
- 1/3 cups of water to grams
- 1/2 cups of water to grams
- 2/3 cups of water to grams
- 3/4 cups of water to grams
- 1 cup of water to grams
- 1 1/2 cups of water to grams
- 2 cups of water to grams
- 3 cups of water to grams
- 4 cups of water to grams
- 1/4 tablespoons of water to grams
- 1/3 tablespoons of water to grams
- 1/2 tablespoons of water to grams
- 2/3 tablespoons of water to grams
- 3/4 tablespoons of water to grams
- 1 tablespoon of water to grams
- 1 1/2 tablespoons of water to grams
- 2 tablespoons of water to grams
- 2 1/2 tablespoons of water to grams
- 3 tablespoons of water to grams
- 4 tablespoons of water to grams
- 1/4 teaspoons of water to grams
- 1/3 teaspoons of water to grams
- 1/2 teaspoons of water to grams
- 2/3 teaspoons of water to grams
- 3/4 teaspoons of water to grams