Cups to grams / Granulated sugar
How many cups is 100g of granulated sugar?
100g of granulated sugar (white sugar) is
½ cup
That's 0.50 US cups, 0.47 metric cups, or 8 level tablespoons.
Worked out from 1 US cup = 200g. 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 granulated sugar
- 200g: 1 cup
- 250g: 1¼ cups
- 1 cup: 200g
- Half a cup: 100g
- A quarter cup: 50g
- 1 tablespoon: 13g
- Full table for granulated sugar
Where these numbers come from
USDA FoodData Central, SR Legacy, food 19335: “Sugars, granulated”. USDA lists these household measures for it:
- 1 serving packet = 2.8g
- 1 tsp = 4.2g
- 1 cup = 200g
- 1 serving 1 cube = 2.3g
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. 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.