Grams to cups › Powdered sugar
Powdered sugar conversion chart
In the UK: icing sugar.
1 cup of powdered sugar = 120 g · 1 tbsp ≈ 7.5 g · 1 tsp ≈ 2.5 g · 1 cup ≈ 4.2 oz · 1 metric cup (250 ml) ≈ 127 g
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Grams to cups
| Grams | US cups | Decimal |
|---|---|---|
| 10 g | 1½ tbsp | 0.08 |
| 25 g | ¼ cup minus 2 tsp | 0.21 |
| 30 g | ¼ cup | 0.25 |
| 50 g | ⅓ cup + 1½ tbsp | 0.42 |
| 60 g | ½ cup | 0.5 |
| 75 g | ⅔ cup minus 2 tsp | 0.63 |
| 80 g | ⅔ cup | 0.67 |
| 100 g | ¾ cup + 1½ tbsp | 0.83 |
| 113 g | 1 cup minus 1 tbsp | 0.94 |
| 120 g | 1 cup | 1 |
| 125 g | 1 cup + 2 tsp | 1.04 |
| 150 g | 1¼ cups | 1.25 |
| 175 g | 1⅓ cups + 2 tbsp | 1.46 |
| 200 g | 1⅔ cups | 1.67 |
| 225 g | 1¾ cups + 2 tbsp | 1.88 |
| 250 g | 2 cups + 1½ tbsp | 2.08 |
| 300 g | 2½ cups | 2.5 |
| 350 g | 3 cups minus 1½ tbsp | 2.92 |
| 400 g | 3⅓ cups | 3.33 |
| 450 g | 3¾ cups | 3.75 |
| 500 g | 4¼ cups minus 1½ tbsp | 4.17 |
| 600 g | 5 cups | 5 |
| 750 g | 6¼ cups | 6.25 |
| 1000 g | 8⅓ cups | 8.33 |
Cups to grams
| US cups | Grams | Metric cup* | Ounces |
|---|---|---|---|
| ¼ cup | 30 g | 31.7 g | 1.1 oz |
| ⅓ cup | 40 g | 42.3 g | 1.4 oz |
| ½ cup | 60 g | 63.4 g | 2.1 oz |
| ⅔ cup | 80 g | 84.5 g | 2.8 oz |
| ¾ cup | 90 g | 95.1 g | 3.2 oz |
| 1 cup | 120 g | 126.8 g | 4.2 oz |
| 1½ cups | 180 g | 190.2 g | 6.3 oz |
| 2 cups | 240 g | 253.6 g | 8.5 oz |
| 3 cups | 360 g | 380.4 g | 12.7 oz |
* The same number of metric cups (250 ml, used in Australia, New Zealand and Canada; UK recipes that give cups usually mean this one too).
Measuring tips
Unsifted powdered (icing) sugar weighs about 120 g per cup; sifted, about 100 g. Most frosting recipes mean unsifted unless they say otherwise.
Fluff it up, spoon it into the cup without shaking or tapping, then level the top with a knife.
Other charts disagree a little: King Arthur Baking uses 113 g per cup of powdered sugar, against USDA’s 120 g. Neither is wrong — it depends on how the cup is filled — but if a recipe gives grams, weigh.
Source: USDA FoodData Central, SR Legacy — Sugars, powdered (cup unsifted), FDC ID 169656.