Powdered Sugar Grams to Cups
Powdered Sugar weighs about 120g per cup. Sifted: 100g. Unsifted and packed: up to 130g.
- Cups (US Customary)
- 0.83 (⅞)
- Tablespoons
- 13.3
- Teaspoons
- 40.0
- Milliliters
- 197 ml
Powdered Sugar Grams to Cups Conversion Table
Powdered Sugar density: 120g per cup (USDA FoodData Central)
| Grams | Cups (Decimal) | Cups (Fraction) | Tablespoons |
|---|---|---|---|
| 10g | 0.08 | ⅛ | 1.3 |
| 25g | 0.21 | ¼ | 3.3 |
| 50g | 0.42 | ⅜ | 6.7 |
| 75g | 0.63 | ⅝ | 10.0 |
| 100g | 0.83 | ⅞ | 13.3 |
| 125g | 1.04 | 1⅛ | 16.7 |
| 150g | 1.25 | 1¼ | 20.0 |
| 175g | 1.46 | 1½ | 23.3 |
| 200g | 1.67 | 1⅔ | 26.7 |
| 225g | 1.88 | 1⅞ | 30.0 |
| 250g | 2.08 | 2⅛ | 33.3 |
| 300g | 2.50 | 2½ | 40.0 |
| 350g | 2.92 | 2⅞ | 46.7 |
| 400g | 3.33 | 3⅓ | 53.3 |
| 500g | 4.17 | 4⅛ | 66.7 |
Ingredient Profile
Powdered Sugar has a density of 120g per cup, based on USDA FoodData Central data. Sifted: 100g. Unsifted and packed: up to 130g.
Density can shift with brand, moisture content, or how the ingredient was packed before it reached your kitchen. Weighing on a scale removes that guesswork.
For comparison, honey is denser at 340g per cup, while panko breadcrumbs is lighter at 60g per cup — a reminder that weight per cup varies by ingredient, not by category alone.
How to Measure Powdered Sugar in Cups
Granulated sugar should be spooned and leveled. Brown sugar should be pressed firmly until it holds the cup's shape when turned out.
Powdered sugar clumps easily during storage, so sifting it before measuring gives a more consistent, lump-free result. Liquid sweeteners like honey and maple syrup should be measured in a liquid cup and poured slowly to avoid trapping air bubbles.
If a recipe calls for powdered sugar by weight instead of volume, a digital kitchen scale set to grams removes any measuring-technique variation entirely — the converter at the top of this page shows both figures side by side so you can check your result either way.
Powdered Sugar vs Other Sugars & Sweeteners
Ingredients in the same category don't always share a similar density. Here's how powdered sugar compares to other sugars & sweeteners on this site.
| Ingredient | Grams per Cup | vs Powdered Sugar |
|---|---|---|
| Powdered Sugar | 120g | baseline |
| Granulated Sugar | 200g | +67% |
| Brown Sugar | 220g | +83% |
| Honey | 340g | +183% |
| Maple Syrup | 322g | +168% |
Common Recipe Uses
- A basic buttercream frosting typically uses 400g to 500g of powdered sugar.
- Glazes for donuts or scones often call for 120g.
- Dusting a finished cake usually takes just 15g to 30g.
How Much Is X Grams of Powdered Sugar?
Need every amount at once? See the full powdered sugar conversion chart.
Related Tools
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Frequently Asked Questions
How many grams are in a cup of powdered sugar?+
A cup of powdered sugar weighs about 120g. Sifted: 100g. Unsifted and packed: up to 130g.
How do I measure powdered sugar accurately?+
Granulated sugar should be spooned and leveled. Brown sugar should be pressed firmly until it holds the cup's shape when turned out.
Does powdered sugar's weight per cup ever change?+
Yes, slightly. Sifted: 100g. Unsifted and packed: up to 130g. A kitchen scale removes that variation entirely.
What's the best way to convert powdered sugar from grams to cups?+
Use the converter at the top of this page, or divide your gram amount by 120 to get cups.
Why does powdered sugar weigh a different amount per cup than other sugars & sweeteners?+
Even within the same category, particle size, moisture, and packing differ enough to change the weight-per-cup figure by 10-30%. That's why this page uses a value measured specifically for powdered sugar, not a category-wide average.
Is 120g per cup the same across every brand of powdered sugar?+
It's close for most brands, though minor milling, processing, or moisture differences can shift the true figure by a few grams. USDA FoodData Central provides the reference value used here.