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Water — Grams in Ounces
1 gram of water equals 0.0338 ounces*
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 ounces?
FAQs on water weight to volume conversion
1 gram of water equals how many ounces?
1 gram of water is equivalent 0.0338 ounces.
How much is 0.0338 ounces of water in grams?
0.0338 ounces of water equals 1 gram.
Water: Grams to ounces — common amounts
| Grams | Ounces |
|---|---|
| 10 grams | 0.338 ounces |
| 25 grams | 0.845 ounces |
| 50 grams | 1.69 ounces |
| 100 grams | 3.38 ounces |
| 150 grams | 5.07 ounces |
| 200 grams | 6.76 ounces |
| 250 grams | 8.45 ounces |
| 300 grams | 10.1 ounces |
| 500 grams | 16.9 ounces |
| 1000 grams | 33.8 ounces |
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 ☺.