Grams to Cups: Powdered sugar
1 cup of powdered sugar weighs about 120 grams. Convert any amount between grams, cups and spoons below.
100 g of powdered sugar = ⅞ cup (0.83 exactly)
How much does 1 cup of powdered sugar weigh?
One US cup of powdered sugar weighs about 120 grams (4.2 oz). A tablespoon holds about 7.5 g and a teaspoon about 2.5 g.
| Amount | Powdered sugar in grams |
|---|---|
| 1 cup | 120 g |
| ¾ cup | 90 g |
| ⅔ cup | 80 g |
| ½ cup | 60 g |
| ⅓ cup | 40 g |
| ¼ cup | 30 g |
| 1 tablespoon | 7.5 g |
| 1 teaspoon | 2.5 g |
Grams to cups powdered sugar chart
| Grams | Cups | Decimal cups |
|---|---|---|
| 25 g | ¼ cup | 0.21 |
| 50 g | ⅜ cup | 0.42 |
| 75 g | ⅝ cup | 0.62 |
| 100 g | ⅞ cup | 0.83 |
| 125 g | 1 cup | 1.04 |
| 150 g | 1 ¼ cups | 1.25 |
| 200 g | 1 ⅔ cups | 1.67 |
| 250 g | 2 ⅛ cups | 2.08 |
| 300 g | 2 ½ cups | 2.50 |
| 400 g | 3 ⅓ cups | 3.33 |
| 500 g | 4 ⅛ cups | 4.17 |
| 750 g | 6 ¼ cups | 6.25 |
| 1000 g | 8 ⅓ cups | 8.33 |
How to measure powdered sugar
Granulated and powdered sugars are spooned and leveled; brown sugar is pressed firmly into the cup. For sticky syrups like powdered sugar, lightly oil the cup so every gram slides out.
Powdered sugar compared with other sugars & sweeteners
Different sugars & sweeteners weigh different amounts per cup, so never swap one for another by volume without converting.
| Ingredient | 1 cup in grams |
|---|---|
| Granulated sugar | 200 g |
| Brown sugar (packed) | 220 g |
| Honey | 340 g |
| Maple syrup | 320 g |
| Molasses | 337 g |
| Corn syrup | 328 g |
Frequently asked questions
How many grams are in a cup of powdered sugar?
One US cup of powdered sugar is about 120 grams.
How many cups is 100 grams of powdered sugar?
100 grams of powdered sugar is about ⅞ cup (0.83 cups).
How many cups is 250 grams of powdered sugar?
250 grams of powdered sugar is about 2 ⅛ cups (2.08 cups).
How many grams in a tablespoon of powdered sugar?
A level tablespoon of powdered sugar weighs about 7.5 grams.
Other ingredients
Last updated: November 2026. Values use the US cup (236.6 ml) and the spoon-and-level method for dry ingredients.