Powdered Sugar (Unsifted) Grams to Cups Calculator
Two-way converter with cup standard switcher, method toggle, and batch multiplier. All values update live.
Cup Standard
Method
Batch
Enter grams of powdered sugar (unsifted)
For best accuracy, weigh powdered sugar (unsifted) on a digital kitchen scale rather than using measuring cups.
Result
1.00
1 cup
cups
16.0
Tablespoons
48.0
Teaspoons
237
Millilitres
0.00
Oz (weight)
120g ÷ 120g/cup = 1.00 cups
Powdered Sugar (Unsifted) Conversion Table
Common gram amounts converted to cups. Updates live when you change settings above.
Values based on 120g/US Cup · Unsifted (Standard) method · Change settings above to update
| Grams | Fraction | Decimal Cups | Tablespoons | Weight (oz) |
|---|---|---|---|---|
| 12g | ⅛ cup | 0.10 cups | 1.6 tbsp | 0.42 oz |
| 30g | ¼ cup | 0.25 cups | 4.0 tbsp | 1.06 oz |
| 60g | ½ cup | 0.50 cups | 8.0 tbsp | 2.12 oz |
| 90g | ¾ cup | 0.75 cups | 12.0 tbsp | 3.17 oz |
| 120g= 1 cup | 10 cups | 1.00 cups | 16.0 tbsp | 4.23 oz |
| 150g | 1¼ cups | 1.25 cups | 20.0 tbsp | 5.29 oz |
| 180g | 1½ cups | 1.50 cups | 24.0 tbsp | 6.35 oz |
| 240g | 20 cups | 2.00 cups | 32.0 tbsp | 8.47 oz |
| 300g | 2½ cups | 2.50 cups | 40.0 tbsp | 10.58 oz |
| 360g | 30 cups | 3.00 cups | 48.0 tbsp | 12.70 oz |
| 480g | 40 cups | 4.00 cups | 64.0 tbsp | 16.93 oz |
| 720g | 60 cups | 6.00 cups | 96.0 tbsp | 25.40 oz |
| 960g | 80 cups | 8.00 cups | 128.0 tbsp | 33.86 oz |
US cup = 236.6ml. → Cups to grams converter
Most-Searched Powdered Sugar (Unsifted) Amounts
Common gram conversions for powdered sugar (unsifted) using the US cup standard.
30g of powdered sugar (unsifted) to cups
0.25 cups
= ¼ cup
Dusting or thin glaze.
60g of powdered sugar (unsifted) to cups
0.50 cups
= ½ cup
Small frosting or icing batch.
90g of powdered sugar (unsifted) to cups
0.75 cups
= ¾ cup
Medium glaze or drizzle.
120g of powdered sugar (unsifted) to cups
1.00 cups
= 1 cup
Full cup unsifted reference.
240g of powdered sugar (unsifted) to cups
2.00 cups
= 2 cups
Standard buttercream frosting base.
480g of powdered sugar (unsifted) to cups
4.00 cups
= 4 cups
Full cake frosting batch.
Powdered Sugar (Unsifted) in Common Recipes
Real recipe amounts with gram and cup values for quick reference.
Classic Buttercream (1 cake)
480g — 4 cups
Cream Cheese Frosting (1 cake)
240g — 2 cups
Royal Icing (flood)
480g — 4 cups
Simple Glaze (1 loaf)
120g — 1 cup
Sugar Cookie Glaze
240g — 2 cups
Lemon Drizzle Topping
120g — 1 cup
Dusting Beignets (24)
60g — ½ cup
Ganache Truffle Coating
60g — ½ cup
Powdered Sugar (Unsifted) — Frequently Asked Questions
120 grams of powdered sugar is exactly 1 US cup (unsifted, spooned into cup and levelled). If sifted before measuring, 1 cup = 108g.
Yes. Powdered sugar (US), icing sugar (UK/AU/NZ), and confectioners' sugar (US formal) are all the same product: finely ground white sugar with a small amount of cornstarch.
Yes — always sift powdered sugar before making frosting or icing. Sifting removes lumps that would leave gritty spots in buttercream or make royal icing hard to pipe smoothly.
Yes. Blend 200g of granulated sugar with 1 teaspoon of cornstarch in a high-speed blender for 1–2 minutes until very fine powder. Sift before use.
Commercial powdered sugar contains approximately 2–3% cornstarch by weight. In 120g, this is only 2.4–3.6g — too little to affect most recipes.
These numbers refer to grind fineness. 4X is coarsest. 6X is medium. 10X (most common supermarket variety) is the finest for frostings and glazes. All weigh approximately the same per cup.