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1 Tablespoon Caster / Superfine Sugar = 14.1g

1 Tablespoon of caster / superfine sugar weighs 14.1 grams (0.5 ounces or 0.03 pounds; 14.8 mL or 1 tablespoon in volume) when measured poured & leveled at a verified bulk density of 225g per 236.6 mL US Customary cup.

Imperial weight: 0.5 oz (0.03 lb) • Volume: 14.8 mL (1 tbsp)

Batch
Measuring density
Converted Measure
1 tbsp Caster / Superfine Sugar (poured & leveled) =
14.1 g
Physical scoop breakdown0.06 cups
1 tbsp
Edit either side to reverseCaster Sugar chart →
Grams
14.1 g
Ounces
0.5 oz
US Cups
1 tbsp
Metric (250mL)
0.06 c
Tablespoons
1 tbsp
Milliliters
14.8 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 1 Tablespoon Caster / Superfine Sugar

Batch scaling conversion table around 1 Tablespoon 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×) 7g (0.25 oz) 1 ½ tsp 7.4 mL
Standard (1×) 14.1g (0.5 oz) 1 tbsp 14.8 mL
1.5× Batch 21.1g (0.74 oz) 1 tbsp + 1 ½ tsp 22.2 mL
Double Batch (2×) 28.1g (0.99 oz) ⅛ cup 29.6 mL
Triple Batch (3×) 42.2g (1.49 oz) 3 tbsp 44.4 mL

Measuring 1 Tablespoon of Caster / Superfine Sugar in the Kitchen

Measured poured & leveled at a verified bulk density of 225g per US cup, 1 tablespoon of caster / superfine sugar weighs 14.1 grams (0.5 ounces). Measured using the spooned into cup method (215g/cup), that same 1 tbsp holds 13.4g — a 0.6g difference in your mixing bowl.

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 grams is 1 tbsp of caster / superfine sugar? ▾

1 Tablespoon of caster / superfine sugar measured poured & leveled weighs 14.1 grams (0.5 ounces).

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.