How many cups is 200g of caster sugar?
200g of caster sugar (superfine sugar) is
1 cup + 1 tbsp
That's 1.05 US cups, 1.00 metric cups, or 17 level tablespoons.
Worked out from 1 US cup = 190g. Cups are rounded to the nearest kitchen fraction, with what's left over in level tablespoons. If you have scales, weighing is more accurate.
Caster sugar is finer than granulated, so a cup holds a little less: 190g against 200g.
Other amounts of caster sugar
- 100g: ½ cup
- 250g: 1⅓ cups
- 1 cup: 190g
- Half a cup: 95g
- A quarter cup: 48g
- 1 tablespoon: 12g
- Full table for caster sugar
Where these numbers come from
King Arthur Baking, Ingredient weight chart, checked 2026-10-25. USDA doesn't measure this ingredient, so we use this source instead. It lists:
- Baker's Special Sugar (superfine sugar, castor sugar): 1 cup = 190g
Fractions of a cup are the cup weight scaled down. The tablespoon is the cup weight divided by 16. 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.