1 Cup of Powdered Sugar in Grams and Ounces
1 cup of powdered sugar (confectioners' sugar, icing sugar) weighs 113 grams, or 4 ounces, unsifted. Sifted powdered sugar is lighter per cup because sifting adds air.
Weigh it if you can. A kitchen scale gives the same result every time, and cups do not.
Cups of powdered sugar to grams and ounces
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 14 g | 0.5 oz |
| 1/4 cup | 28 g | 1 oz |
| 1/3 cup | 38 g | 1.3 oz |
| 1/2 cup | 56 g | 2 oz |
| 2/3 cup | 75 g | 2.7 oz |
| 3/4 cup | 85 g | 3 oz |
| 1 cup | 113 g | 4 oz |
| 1 1/2 cups | 170 g | 6 oz |
| 2 cups | 226 g | 8 oz |
| 3 cups | 339 g | 12 oz |
Weights are from the King Arthur Baking ingredient weight chart, measured by spooning the ingredient into the cup and leveling it off. Ounces here are weight ounces, not fluid ounces.
Tablespoons and teaspoons of powdered sugar
| Spoons | Grams | Ounces |
|---|---|---|
| 1 teaspoon | 2.4 g | 0.1 oz |
| 1 tablespoon | 7.1 g | 0.2 oz |
| 2 tablespoons | 14 g | 0.5 oz |
| 4 tablespoons | 28 g | 1 oz |
Grams of powdered sugar to cups
| Weight | Cups |
|---|---|
| 50 g | about 1/2 cup |
| 100 g | about 1 cup |
| 125 g | 1 1/8 cups |
| 200 g | 1 3/4 cups |
| 250 g | about 2 1/4 cups |
| 500 g | about 4 1/2 cups |
| 1000 g | about 8 3/4 cups |
| 4 oz | 1 cup |
| 8 oz | 2 cups |
| 16 oz | 4 cups |
For any other amount, use the cups to grams converter.
Compared with similar ingredients
| Ingredient | 1 cup in grams | 1 cup in ounces |
|---|---|---|
| Powdered sugar (unsifted) | 113 g | 4 oz |
| Granulated sugar | 198 g | 7 oz |
| Superfine (caster) sugar | 190 g | 6.7 oz |
| Brown sugar (packed) | 213 g | 7.5 oz |
| Cornstarch | 112 g | 4 oz |
Sifted vs unsifted
Recipes that say "1 cup powdered sugar, sifted" mean measure first, then sift, so use 113 grams. Recipes that say "1 cup sifted powdered sugar" mean sift first, then measure, which gives a lighter cup. If a frosting comes out too stiff or too runny, this is often why.
Frequently asked questions
How many grams is 1 cup of powdered sugar?
113 grams unsifted, about 4 ounces.
Is powdered sugar the same as icing sugar?
Yes. Powdered sugar, confectioners' sugar, and icing sugar are the same product: finely ground sugar, usually with a little cornstarch.
How many cups is 500 grams of powdered sugar?
About 4 1/2 cups. 500 divided by 113 is 4.42 cups.
How many grams is 1/2 cup of powdered sugar?
About 57 grams.
Why is a cup of powdered sugar lighter than granulated sugar?
The particles are much finer and trap more air, so a cup holds less sugar by weight: 113 grams against 198 grams.