Grams to cups of powdered sugar
100 g of powdered sugar = 0.83 cups
Measure: about ¾ cup + 1 tbsp. Based on 120 g per US cup of powdered sugar (USDA).
Converter
Ingredient: powdered sugar, 120 g per US cup
0.83 cups
Measure: about ¾ cup + 1 tbsp
Type a number — fractions like 3/4 or 1 1/2 work too.
Grams of powdered sugar in cups
US cups, level. The measure is the nearest you can make with a standard set of cups and spoons.
| Grams | Cups | Measure |
|---|---|---|
| 25 g | 0.21 | ≈ 3 tbsp |
| 50 g | 0.42 | ≈ ⅓ cup + 1 tbsp |
| 75 g | 0.63 | ½ cup + 2 tbsp |
| 100 g | 0.83 | ≈ ¾ cup + 1 tbsp |
| 125 g | 1.04 | ≈ 1 cup + 1 tbsp |
| 150 g | 1.25 | 1¼ cups |
| 200 g | 1.67 | 1⅔ cups |
| 250 g | 2.08 | ≈ 2 cups + 1 tbsp |
| 300 g | 2.5 | 2½ cups |
| 400 g | 3.33 | 3⅓ cups |
| 500 g | 4.17 | ≈ 4 cups + 3 tbsp |
Cups of powdered sugar in grams
| Amount | Grams | Ounces |
|---|---|---|
| 1 tsp | 2.5 g | 0.09 oz |
| 1 tbsp | 7.5 g | 0.26 oz |
| ⅛ cup | 15 g | 0.53 oz |
| ¼ cup | 30 g | 1.06 oz |
| ⅓ cup | 40 g | 1.41 oz |
| ½ cup | 60 g | 2.12 oz |
| ⅔ cup | 80 g | 2.82 oz |
| ¾ cup | 90 g | 3.17 oz |
| 1 cup | 120 g | 4.23 oz |
| 1½ cups | 180 g | 6.35 oz |
| 2 cups | 240 g | 8.47 oz |
| 3 cups | 360 g | 12.7 oz |
| 4 cups | 480 g | 16.9 oz |
Powdered sugar by the pound
A pound is exactly 453.59237 g.
| Weight | Grams | Cups, unsifted | Cups, sifted |
|---|---|---|---|
| 1 lb | 453.6 g | 3.78 | 4.54 |
| 2 lb | 907.2 g | 7.56 | 9.07 |
Also sold as confectioners' sugar or icing sugar. Sifting lightens it: a cup of sifted powdered sugar weighs less than a cup spooned straight from the bag.
Where this number comes from
USDA FoodData Central lists 1 cup unsifted of “Sugars, powdered” at 120 g, and 1 cup sifted at 100 g (FDC ID 169656, SR Legacy).
Everything else is worked out from that figure: spoons from 1 cup = 16 tablespoons = 48 teaspoons, and ounces and pounds from their exact definitions (1 oz = 28.349523125 g, 1 lb = 453.59237 g, NIST).
Source: FoodData Central, USDA Agricultural Research Service.
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