KitchenWeightCalc
Tools

4 oz Caster / Superfine Sugar = ½ cup

4 oz (113.4 grams) of caster / superfine sugar equals ½ cup (0.50 US Customary cups, 0.48 Metric 250 mL cups, 119.2 mL, or 8.06 tablespoons) when measured poured & leveled at a verified density of 225g per US Customary cup.

Metric weight: 113.4g • Exact volume: 0.50 US Cups • 0.48 Metric Cups • 8.06 tbsp

Batch
Measuring density
Converted Measure
4 oz Caster / Superfine Sugar (poured & leveled) =
½ US Cup
Physical scoop breakdown0.50 cups
1/2 cup
Edit either side to reverseCaster Sugar chart →
Grams
113.4 g
Ounces
4 oz
US Cups
½ cup
Metric (250mL)
0.48 c
Tablespoons
8.06 tbsp
Milliliters
119.2 mL

Kitchen note: Test-kitchen baseline uses poured & leveled (225g/cup). Switching to spooned into cup (215g/cup) changes each cup by 10g—use the packing toggle on the scale bench to match your recipe.

Batch Scaling Around 4 oz Caster / Superfine Sugar

Batch scaling conversion table around 4 oz of Caster / Superfine 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) ¼ cup 59.6 mL
Standard (1×) 113.4g (4 oz) ½ cup 119.2 mL
1.5× Batch 170.1g (6 oz) ¾ cup 178.9 mL
Double Batch (2×) 226.8g (8 oz) 1 cup 238.5 mL
Triple Batch (3×) 340.2g (12 oz) 1 ½ cups 357.7 mL

Measuring 4 oz of Caster / Superfine Sugar in the Kitchen

Because 1 US Customary Cup (236.6 mL) of caster / superfine sugar weighs 225g when measured poured & leveled, 4 Ounces (113.4g) translates to 0.50 US cups (½ cup). By contrast, using the spooned into cup measure (215g/cup — a 10g per-cup shift), 4 oz occupies ½ cup + 1 ¼ tsp (0.53 cups).

Without a kitchen scale, measure ½ cup (8.06 tablespoons total) using poured & leveled technique. Pour and level flat. Because the micro-granules pack closer together than regular granulated sugar, 1 cup weighs a dense 225 grams.

Source note: British Baker standard (225g/cup) & Domino Superfine specifications

Frequently Asked Questions

How many cups is 4 ounces (4 oz) of caster / superfine sugar? ▾

4 ounces (113.4 grams) of caster / superfine sugar (poured & leveled, 225g per US cup) equals ½ cup (0.50 US Customary Cups, 0.48 Metric 250 mL cups, or 8.06 tablespoons).

Why do British and Australian recipes call for caster sugar? ▾

Caster sugar dissolves almost immediately into egg whites and butter, preventing gritty meringues and dry cake crumbs.

Why does a cup of caster sugar weigh 225g while granulated weighs 200g? ▾

Smaller crystal size means tighter packing with significantly less empty airspace between granules.