Cup & Gram

300 Grams of Water to Cups

300 grams of water equals 1 ¼ cups (1.25 US cups), based on 240 g per cup (1 US cup = 240 ml). In the kitchen, measure 1 cup + 4 tbsp. For best results, weigh water with a scale — cup measurements vary with how the cup is filled.

300 g of water in every unit
US cups1 ¼ cups (1.25 cups)
Measured as1 cup + 4 tbsp
Ounces (weight)10.6 oz
Tablespoons (level)about 20 tbsp
Density used240 g per US cup

How to measure 300 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 of water to cups — nearby values
GramsCupsDecimal
200 g ⅞ cup 0.83
250 g 1 cup 1.04
400 g 1 ⅔ cups 1.67
500 g 2 ⅛ cups 2.08

300 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:

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 cup of water in grams

Density 240 g/cup — sources: density (1.00 g/ml), USDA FoodData Central. Data verified 2026-08-20. Methodology.