90g Powdered Sugar in Cups
90 grams of powdered sugar is ¾ cup — 120g per US cup. Buttercream and icing recipes live here. Powdered sugar is much lighter per cup than granulated, so the same weight fills noticeably more volume.
How many cups is 90g of powdered sugar?
90 grams of powdered sugar equals:
Measuring by hand? That is 12 tablespoons. It is about 18% of a 500 g bag of powdered sugar.
Powdered sugar clumps and compacts in the bag. Sift or whisk it first, then spoon it into the cup — do not tap the cup down.
Grams to Cups Converter
Quick select
90 grams of Powdered Sugar is about ¾ cup, using a 236.588 millilitre cup at 120 grams per cup.
Reading
- cups
- 0.75
- tbsp
- 12.0
- tsp
- 36.0
See the full 90g to cups guide →
See 90g powdered sugar to cups →
US customary cup (236.588ml) · 120g per cup
Dedicated conversion guides use the default US customary cup.
Applies to this page only — the database value (120g per US cup) is unchanged.
90g of powdered sugar vs other ingredients
Grams measure weight and cups measure volume, so the same 90 grams fills a different amount of cup for every ingredient:
| Ingredient | 90g in cups | g per cup |
|---|---|---|
| Powdered Sugar | ¾ cup | 120 |
| All-Purpose Flour | ¾ cup | 125 |
| Granulated Sugar | ½ cup | 200 |
| Butter | ⅜ cup | 227 |
See all 90g conversions on the 90 grams to cups chart.
Nearby powdered sugar amounts
| Grams of powdered sugar | Cups | Tablespoons |
|---|---|---|
| 70g | ⅝ cup | 9.33 tbsp |
| 75g | ⅝ cup | 10 tbsp |
| 80g | ⅔ cup | 11 tbsp |
| 85g | ¾ cup | 11 tbsp |
| 100g | ⅞ cup | 13 tbsp |
| 110g | ⅞ cup | 15 tbsp |
| 113g | 1 cup | 15 tbsp |
| 115g | 1 cup | 15 tbsp |
Full ladder on the powdered sugar grams to cups chart.
Frequently Asked Questions
How many cups is 90g of powdered sugar?
90 grams of powdered sugar is ¾ cup. In kitchen measures that is 12 tablespoons, worked out from 120 grams per US cup.
How many grams are in 1 cup of powdered sugar?
One US cup of powdered sugar weighs about 120 grams, one tablespoon about 7.5 grams, and one teaspoon about 2.5 grams. This page divides 90 grams by that cup weight.
Is 90g of powdered sugar the same as 90g of all-purpose flour?
No. 90g of powdered sugar is ¾ cup, while 90g of all-purpose flour is ¾ cup. Same weight on the scale, different volume in the cup, because the two have different densities.
How do I measure 90g of powdered sugar without a scale?
Use 12 tablespoons. Powdered sugar clumps and compacts in the bag. Sift or whisk it first, then spoon it into the cup — do not tap the cup down.
Is it better to weigh powdered sugar or measure it in cups?
Weighing is more accurate, especially in baking, because it removes the variation in how the powdered sugar is packed into the cup. If you have no scale, use the cup figure above and keep your measuring method consistent across the whole recipe.