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4 oz Powdered / Confectioners' Sugar = ¾ cup + 3 tbsp + ¼ tsp

4 oz (113.4 grams) of powdered / confectioners' sugar equals ¾ cup + 3 tbsp + ¼ tsp (0.94 US Customary cups, 0.89 Metric 250 mL cups, 223.6 mL, or 15.12 tablespoons) when measured unsifted spooned at a verified density of 120g per US Customary cup.

Metric weight: 113.4g • Exact volume: 0.94 US Cups • 0.89 Metric Cups • 15.12 tbsp

Batch
Measuring density
Converted Measure
4 oz Powdered / Confectioners' Sugar (unsifted spooned) =
¾ US Cup + 3 tbsp + ¼ tsp
Physical scoop breakdown0.94 cups
1/2 cup
1/4 cup
×3
3 tbsp
¼ tsp
Edit either side to reversePowdered Sugar chart →
Grams
113.4 g
Ounces
4 oz
US Cups
¾ cup + 3 tbsp + ¼ tsp
Metric (250mL)
0.89 c
Tablespoons
15.12 tbsp
Milliliters
223.6 mL

Kitchen note: Test-kitchen baseline uses unsifted spooned (120g/cup). Switching to sifted (100g/cup) changes each cup by 20g—use the packing toggle on the scale bench to match your recipe.

Batch Scaling Around 4 oz Powdered / Confectioners' Sugar

Batch scaling conversion table around 4 oz of Powdered / Confectioners' Sugar (0.5× to 3× recipe batches in grams, ounces, US cups, and milliliters)
Batch Scale Weight (g / oz) US Cups & Spoons Metric (mL)
Half Batch (0.5×) 56.7g (2 oz) ⅓ cup + 2 tbsp + ¾ tsp 111.8 mL
Standard (1×) 113.4g (4 oz) ¾ cup + 3 tbsp + ¼ tsp 223.6 mL
1.5× Batch 170.1g (6 oz) 1 ⅓ cups + 1 tbsp + 1 tsp 335.4 mL
Double Batch (2×) 226.8g (8 oz) 1 ¾ cups + 2 tbsp + ¾ tsp 447.1 mL
Triple Batch (3×) 340.2g (12 oz) 2 ¾ cups + 1 tbsp + 1 tsp 670.7 mL

Measuring 4 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, 4 Ounces (113.4g) translates to 0.94 US cups (¾ cup + 3 tbsp + ¼ tsp). By contrast, using the sifted measure (100g/cup — a 20g per-cup shift), 4 oz occupies 1 ⅛ cups (1.13 cups).

Without a kitchen scale, measure ¾ cup + 3 tbsp + ¼ tsp (15.12 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 4 ounces (4 oz) of powdered / confectioners' sugar? ▾

4 ounces (113.4 grams) of powdered / confectioners' sugar (unsifted spooned, 120g per US cup) equals ¾ cup + 3 tbsp + ¼ tsp (0.94 US Customary Cups, 0.89 Metric 250 mL cups, or 15.12 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.