Powdered Sugar: Complete Cup to Gram Conversion
1 cup of powdered sugar weighs 120g (spooned, USDA standard) or varies by measuring technique. See the full 16-interval conversion table for all amounts below.
Powdered Sugar Conversion Table
1 cup powdered sugar = 120g (USDA FoodData Central basis. 1 cup = 240ml)
| Amount | Grams (g) | Ounces (oz) | Milliliters (ml) |
|---|---|---|---|
| 1/8 cup | 15g | 0.53 oz | 30 ml |
| 1/4 cup | 30g | 1.06 oz | 60 ml |
| 1/3 cup | 40g | 1.41 oz | 80 ml |
| 1/2 cup | 60g | 2.12 oz | 120 ml |
| 2/3 cup | 80g | 2.82 oz | 160 ml |
| 3/4 cup | 90g | 3.17 oz | 180 ml |
| 1 cup1 cup | 120g | 4.23 oz | 240 ml |
| 1 1/4 cups | 150g | 5.29 oz | 300 ml |
| 1 1/2 cups | 180g | 6.35 oz | 360 ml |
| 1 2/3 cups | 200g | 7.05 oz | 400 ml |
| 2 cups | 240g | 8.47 oz | 480 ml |
| 2 1/2 cups | 300g | 10.58 oz | 600 ml |
| 3 cups | 360g | 12.7 oz | 720 ml |
| 3 1/2 cups | 420g | 14.82 oz | 840 ml |
| 4 cups | 480g | 16.93 oz | 960 ml |
Source: USDA FoodData Central SR Legacy. Values shown for spooned (not packed) measurement unless specified.
Powdered Sugar vs Other Sugar Types
Different types of sugar vary in weight per cup due to different densities.
| Sugar Type | 1 Cup (g) | Density (g/ml) |
|---|---|---|
| Powdered Sugarcurrent | 120g | 0.5 |
| Granulated Sugar | 200g | 0.833 |
| Brown Sugar (packed) | 220g | 0.917 |
| Caster Sugar | 210g | 0.875 |
Why Does 1 Cup of Powdered Sugar Vary?
The weight of 1 cup depends on how you measure. USDA standard (spooned) = 120g.
Spooned & Leveled
Spoon the ingredient into the measuring cup, then level off with a straight edge. This is the standard method used by USDA FoodData Central.
Reference weightSifted
Sift the ingredient first, then spoon into the cup. Sifting aerates the ingredient, reducing weight by 10-20%.
~10-20% lighterScooped (packed)
Dip the cup directly into the bag and pack. This is the most inaccurate method — can be 20-30% heavier than spooned.
~20-30% heavierAbout Powdered Sugar Density
Powdered sugar (confectioners sugar, icing sugar) is much lighter than granulated. 1 cup unsifted = 120g. Sifted: ~100g. Always sift before using to remove lumps. Used for frosting, dusting, and recipes requiring smooth texture.
Pro tip: For consistent baking results, use a kitchen scale. Weight measurements eliminate the variability of cup measurement entirely. USDA values shown are based on the spooned & leveled method.
Powdered Sugar: Grams to Cups Conversion
Convert powdered sugar from grams back to cups, tablespoons, and teaspoons.
| Grams | Cups | Tablespoons | Teaspoons |
|---|---|---|---|
| 25g | 0.21 cups | 3.33 tbsp | 10 tsp |
| 50g | 0.42 cups | 6.67 tbsp | 20 tsp |
| 100g | 0.83 cups | 13.33 tbsp | 40 tsp |
| 150g | 1.25 cups | 20 tbsp | 60 tsp |
| 200g | 1.67 cups | 26.67 tbsp | 80 tsp |
| 250g | 2.08 cups | 33.33 tbsp | 100 tsp |
| 300g | 2.5 cups | 40 tbsp | 120 tsp |
| 400g | 3.33 cups | 53.33 tbsp | 160 tsp |
| 500g | 4.17 cups | 66.67 tbsp | 200 tsp |
Based on 1 cup powdered sugar = 120g (USDA standard, spooned & leveled). 16 tablespoons = 1 cup. 48 teaspoons = 1 cup.
Related Ingredients
Direct Conversion Pages for Powdered Sugar
Each page focuses on one conversion direction with a dedicated table.