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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 0.0042 cups.
How much is 0.0042 cups of water in grams?
0.0042 cups of water equals 1 gram.
Water Conversion Chart Near 1 Gram
| Grams to Cups of Water | |
|---|---|
| 1 gram | 0.00423 cups |
| 1.1 grams | 0.00465 cups |
| 1.2 grams | 0.00507 cups |
| 1.3 grams | 0.00549 cups |
| 1.4 grams | 0.00592 cups |
| 1.5 grams | 0.00634 cups |
| 1.6 grams | 0.00676 cups |
| 1.7 grams | 0.00719 cups |
| 1.8 grams | 0.00761 cups |
| 1.9 grams | 0.00803 cups |
| 2 grams | 0.00845 cups |
| 2.1 grams | 0.00888 cups |
| 2.2 grams | 0.0093 cups |
| 2.3 grams | 0.00972 cups |
| 2.4 grams | 0.0101 cups |
| 2.5 grams | 0.0106 cups |
| 2.6 grams | 0.011 cups |
| 2.7 grams | 0.0114 cups |
| 2.8 grams | 0.0118 cups |
| 2.9 grams | 0.0123 cups |
| 3 grams | 0.0127 cups |
| 3.1 grams | 0.0131 cups |
| 3.2 grams | 0.0135 cups |
| 3.3 grams | 0.0139 cups |
| 3.4 grams | 0.0144 cups |
Note: Values are rounded to 3 significant figures. Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…).
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 ☺.