How many cups is 100g of water?
100g of water is
⅓ cup + 1 tbsp
That's 0.42 US cups, 0.40 metric cups, or 7 level tablespoons.
Worked out from 1 US cup = 237g. Cups are rounded to the nearest kitchen fraction, with what's left over in level tablespoons. If you have scales, weighing is more accurate.
Other amounts of water
- 200g: ¾ cup + 2 tbsp
- 250g: 1 cup + 1 tbsp
- 1 cup: 237g
- Half a cup: 119g
- A quarter cup: 59g
- 1 tablespoon: 15g
- Full table for water
Where these numbers come from
USDA FoodData Central, SR Legacy, food 14555: “Water, bottled, generic”. USDA lists these household measures for it:
- 1 fl oz = 29.6g
- 1 cup = 237g
- 1 ml = 1g
Fractions of a cup are the cup weight scaled down. The tablespoon figure is the cup weight divided by 16, since USDA doesn't list a tablespoon for this ingredient. The teaspoon is a third of the tablespoon. Metric-cup figures assume a 250ml cup, and Australian tablespoons hold 20ml. Weights under 10g are rounded to 0.1g, everything else to the nearest gram. Full source list.