100 Grams of Water to Cups
100 grams of water equals ⅜ cup (0.42 US cups), based on 240 g per cup (1 US cup = 240 ml). In the kitchen, measure 7 tbsp. For best results, weigh water with a scale — cup measurements vary with how the cup is filled.
| US cups | ⅜ cup (0.42 cups) |
|---|---|
| Measured as | 7 tbsp |
| Ounces (weight) | 3.5 oz |
| Tablespoons (level) | about 6.7 tbsp |
| Density used | 240 g per US cup |
How to measure 100 g of water without a scale
Water is the reference ingredient: 1 US cup (240 ml) weighs 240 g, so grams and milliliters are interchangeable. Any liquid measuring cup works; read at eye level.
Nearby amounts
| Grams | Cups | Decimal |
|---|---|---|
| 50 g | ¼ cup | 0.21 |
| 75 g | ⅓ cup | 0.31 |
| 125 g | ½ cup | 0.52 |
| 150 g | ⅝ cup | 0.63 |
100 grams of other ingredients
The same weight fills a very different cup depending on density — that's why "grams to cups" always needs the ingredient:
- 100 g of all-purpose flour to cups — ⅞ cup
- 100 g of granulated sugar to cups — ½ cup
- 100 g of powdered sugar to cups — ⅞ cup
- 100 g of brown sugar (packed) to cups — ½ cup
- 100 g of honey to cups — ⅓ cup
Convert another amount
250 g Water = 1 cup
Exactly 1.04 cups — or measure 1 cup + 1 tbsp.
More water conversions: the full grams-to-cups water chart · 1/2 cups of water in grams
Density 240 g/cup — sources: density (1.00 g/ml), USDA FoodData Central. Data verified 2026-08-20. Methodology.