Batch Scaling Around 150g Powdered / Confectioners' Sugar
| Batch Scale | Weight (g / oz) | US Cups & Spoons | Metric (mL) |
|---|---|---|---|
| Half Batch (0.5×) | 75g (2.65 oz) | ½ cup + 2 tbsp | 147.9 mL |
| Standard (1×) | 150g (5.29 oz) | 1 ¼ cups | 295.7 mL |
| 1.5× Batch | 225g (7.94 oz) | 1 ¾ cups + 2 tbsp | 443.6 mL |
| Double Batch (2×) | 300g (10.58 oz) | 2 ½ cups | 591.5 mL |
| Triple Batch (3×) | 450g (15.87 oz) | 3 ¾ cups | 887.2 mL |
Measuring 150g of Powdered / Confectioners' Sugar in the Kitchen
Because 1 US Customary Cup (236.6 mL) of powdered / confectioners' sugar weighs 120g when measured unsifted spooned, 150 Grams (150g) translates to 1.25 US cups (1 ¼ cups). By contrast, using the sifted measure (100g/cup — a 20g per-cup shift), 150g occupies 1 ½ cups (1.50 cups).
Without a kitchen scale, measure 1 ¼ cups (20 tablespoons total) using unsifted spooned technique. Spoon gently into the measuring cup and level flat. If your recipe calls for sifted powdered sugar, measure after sifting (100g/cup) or weigh directly.
Source note: USDA FoodData Central #169658 & Domino Confectioners 10-X specifications
Frequently Asked Questions
How many cups is 150 grams of powdered / confectioners' sugar? ▾
150 grams of powdered / confectioners' sugar (unsifted spooned, 120g per US cup) equals 1 ¼ cups (1.25 US Customary Cups, 1.18 Metric 250 mL cups, or 20 tablespoons).
Why does powdered sugar contain cornstarch? ▾
Commercial confectioners sugar contains about 3% cornstarch as an anti-caking agent to prevent the microscopic particles from clumping.
Why do recipes specify sifted versus unsifted powdered sugar? ▾
Sifted powdered sugar traps significant air, dropping cup weight from 120g down to 100g—a 20% reduction in sweetness.