Batch Scaling Around 8 oz Powdered / Confectioners' Sugar
| Batch Scale | Weight (g / oz) | US Cups & Spoons | Metric (mL) |
|---|---|---|---|
| Half Batch (0.5×) | 113.4g (4 oz) | ¾ cup + 3 tbsp + ¼ tsp | 223.6 mL |
| Standard (1×) | 226.8g (8 oz) | 1 ¾ cups + 2 tbsp + ¾ tsp | 447.1 mL |
| 1.5× Batch | 340.2g (12 oz) | 2 ¾ cups + 1 tbsp + 1 tsp | 670.7 mL |
| Double Batch (2×) | 453.6g (16 oz) | 3 ¾ cups + 1 ½ tsp | 894.3 mL |
| Triple Batch (3×) | 680.4g (24 oz) | 5 ⅔ cups | 1341.4 mL |
Measuring 8 oz 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, 8 Ounces (226.8g) translates to 1.89 US cups (1 ¾ cups + 2 tbsp + ¾ tsp). By contrast, using the sifted measure (100g/cup — a 20g per-cup shift), 8 oz occupies 2 ¼ cups + ¾ tsp (2.27 cups).
Without a kitchen scale, measure 1 ¾ cups + 2 tbsp + ¾ tsp (30.24 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 8 ounces (8 oz) of powdered / confectioners' sugar? ▾
8 ounces (226.8 grams) of powdered / confectioners' sugar (unsifted spooned, 120g per US cup) equals 1 ¾ cups + 2 tbsp + ¾ tsp (1.89 US Customary Cups, 1.79 Metric 250 mL cups, or 30.24 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.