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Powdered sugar: grams to cups

One US cup of powdered sugar, unsifted weighs about 120 grams, so 100 grams is about 40/48 US cup (13.33 tablespoons).

What are you measuring?

Amount in grams

Decimals and fractions work, including 1/2 and 1 1/2.

Common amounts

US measuring cups, about 236.6 mL each.

Powdered sugar, unsifted

About 40/48 US cup

0.83 US cups. 13.33 US tablespoons.

One US cup of powdered sugar, unsifted weighs about 120 grams.

0.833 US cups
Cup scale: 1 US cupScale: 100 g

Measure before sifting. Sifting first changes the amount that fits in the cup.

Common amounts of powdered sugar

50 grams of powdered sugar

About 20/48 US cup (6.67 tablespoons).

100 grams of powdered sugar

About 40/48 US cup (13.33 tablespoons).

200 grams of powdered sugar

About 1 2/3 US cups (26.67 tablespoons).

250 grams of powdered sugar

About 2 4/48 US cups (33.33 tablespoons).

Powdered sugar grams to cups

Powdered sugar, unsifted; cup amounts are estimates
Grams	US cups	Tablespoons
25 g	10/48	3.33
50 g	20/48	6.67
75 g	5/8	10
100 g	40/48	13.33
125 g	1 2/48	16.67
150 g	1 1/4	20
200 g	1 2/3	26.67
250 g	2 4/48	33.33
300 g	2 1/2	40
400 g	3 1/3	53.33
500 g	4 8/48	66.67

Powdered sugar cups to grams

Powdered sugar, unsifted; one US cup is about 120 g
US cups	Grams	Ounces by weight
1/8	15 g	0.53
1/4	30 g	1.06
1/3	40 g	1.41
1/2	60 g	2.12
2/3	80 g	2.82
3/4	90 g	3.17
1	120 g	4.23
1 1/2	180 g	6.35
2	240 g	8.47
3	360 g	12.7
4	480 g	16.93

Same cup, different weight

Match the recipe’s wording: a packed, sifted or cooked cup weighs a different amount.

Grams in one US cup
Ingredient	Grams per cup	100 g in cups
Powdered sugar, unsifted	120	40/48
Powdered sugar, sifted	100	1
Granulated sugar	200	1/2

Measuring powdered sugar by the cup

Measure before sifting. Sifting first changes the amount that fits in the cup.

Level dry ingredients with a flat edge instead of leaving a heap, and read liquids on a flat surface at eye level. When a recipe gives grams, a kitchen scale is the surest way to match it.

Cup weight: USDA FoodData Central, SR Legacy release 2018-04, FDC ID 169656 (Sugars, powdered).

Updated September 27, 2026 · The Well Stocked Kitchen