100g powdered sugar to cups
Based on 1 US cup of powdered sugar at 120 g. Use the calculator below to change the cup size or ingredient.
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Convert by ingredient, cup size and unit. Works with decimals and fractions like 1 1/2 or ¾.
Measuring 100g of powdered sugar without a scale
No scale? 100 g of powdered sugar is about 0.83 cup, or roughly 13 tablespoons using standard US measuring cups and spoons. Spoon it in and level off the top instead of scooping, which packs in extra.
One hundred grams lands at 0.83 US cups, a hair shy of a full cup and an awkward fraction to eyeball with measuring cups. This is a common quantity in shortbread, snowball cookies, and small-batch royal icing, where the sugar is a real component rather than a garnish. Because you are so close to a whole cup, weighing wins here: spooning to 0.83 by sight almost always overshoots, and 15 extra grams stiffens an icing noticeably.
Powdered Sugar grams to cups
| Grams | Cups | Decimal |
|---|---|---|
| 50 g | 0.42 cup | 0.42 |
| 100 g | 0.83 cup | 0.83 |
| 120 g | 1 cup | 1 |
| 150 g | 1¼ cups | 1.25 |
| 200 g | 1⅔ cups | 1.67 |
Brands and how you fill the cup shift this a little. For why powdered sugar varies and the most accurate way to measure it, see the full powdered sugar grams to cups guide.
FAQ
How many cups is 100g of powdered sugar?
100 grams of powdered sugar is about 0.83 cup, based on 1 US cup of powdered sugar weighing 120 g.
Does cup size change 100g of powdered sugar?
A little. 100 g of powdered sugar is about 0.83 cup in a US cup (240 ml) and about 0.8 cup in a larger metric or Australian cup (250 ml).