Convert Caster Sugar from Tablespoon to Ounces

How many ounces is 1 tablespoon of caster sugar?

1 tablespoon of caster sugar (castor sugar) is 0.48 ounces. 2 tablespoons of caster sugar is 0.95 ounces. 1/2 tablespoon of caster sugar is 0.24 ounces. 1/4 tablespoon (0.25 tablespoon) of caster sugar is 0.12 ounces. Use the converter below for any amount.

  • A tablespoon here is the 15 ml metric standard, about 16.67 to a metric cup, the same size as a UK tablespoon. A US tablespoon is smaller at 14.79 ml, so US cooks measuring with US spoons need slightly more. An Australian tablespoon is larger at 20 ml, so it holds about a third more. When tablespoon size matters →
  • A little over or under won't ruin the bake. An extra spoon mainly makes it sweeter.

Caster sugar, also known as superfine or castor sugar, is a key ingredient in many baking recipes due to its fine texture and quick-dissolving properties. Commonly used in cakes, meringues, and desserts, it sits between granulated sugar and powdered sugar in terms of texture. One metric cup (250 ml) of caster sugar weighs around 225 grams or 7.94 ounces.

Since baking is a precise science, even small differences in sugar quantity can affect the final outcome, from texture and sweetness to structure. This page helps you convert caster sugar between grams, cups, tablespoons, and more so that you can follow any recipe confidently, no matter what measurement system it uses.

Also known as

  • castor sugar
  • Superfine Sugar
  • Baker's Sugar
  • Bar Sugar

Standard granulated sugar has larger crystals than caster sugar, so it dissolves more slowly in batters and meringues. They are close in weight (200 g vs 225 g per cup) and swap 1:1 by volume in most recipes, though caster gives a smoother result. See our Sugar converter.

Raw sugar has large, coarse crystals that dissolve slowly, the opposite of fine caster sugar. It packs lighter (200 g vs 225 g per cup), so it is not a 1:1 swap by volume; weigh when substituting. See our Raw Sugar converter.

Out of caster sugar? See caster sugar substitutes →

No measuring spoons? The tool below gets you close, and a measuring spoon set keeps small amounts accurate.

Caster Sugar Measurement Converter

Enter a value and pick your units.

Result

0 Ounces

Common Caster Sugar Conversions

Here are the most common caster sugar conversions from tablespoons to ounces.

TablespoonsOunces
1 tbsp0.48 oz
2 tbsp0.95 oz
3 tbsp1.43 oz
4 tbsp1.91 oz
6 tbsp2.86 oz
8 tbsp3.81 oz
10 tbsp4.76 oz
12 tbsp5.72 oz
16 tbsp7.62 oz

Caster Sugar Conversion Chart

The conversion chart below gives a quick reference for converting caster sugar from Tablespoon to Ounces and other measurements.

tbspouncescupgramscup(US)tsp
1 tbsp0.48 oz0.06 cup13.5 g0.06 cup (US)3 tsp
2 tbsp0.95 oz0.12 cup27 g0.13 cup (US)6 tsp
3 tbsp1.43 oz0.18 cup40.5 g0.19 cup (US)9 tsp
4 tbsp1.91 oz0.24 cup54 g0.25 cup (US)12 tsp

Frequently Asked Questions

How many ounces is 1 tablespoon of caster sugar?
1 tablespoon of caster sugar is 0.48 ounces. The ratio is fixed, so 2 tablespoons of caster sugar is 0.95 ounces and 0.5 tablespoons is 0.24 ounces. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the caster sugar converter
How many ounces is 1.5 tablespoons of caster sugar?
1.5 tablespoons of caster sugar is 0.71 ounces. The ratio is fixed, so 1 tablespoon of caster sugar is 0.48 ounces and 2 tablespoons is 0.95 ounces. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
How many ounces is 2 tablespoons of caster sugar?
2 tablespoons of caster sugar is 0.95 ounces. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 tablespoon of caster sugar is 0.48 ounces, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact ounces reading.
How many tablespoons of caster sugar is 0.48 ounces?
0.48 ounces of caster sugar is 1.01 tablespoons. The conversion works the same in reverse, so you can switch between ounces and tablespoons without changing the result. This helps when a recipe lists tablespoons but you would rather weigh or measure in ounces. The converter above and the chart below cover both directions for any amount.
How many ounces is 1 tablespoon of castor sugar?
Castor sugar is another name for caster sugar, so 1 tablespoon of castor sugar is 0.48 ounces, exactly the same as caster sugar. The figure does not change with the name: 2 tablespoons is 0.95 ounces and 0.5 tablespoons is 0.24 ounces. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Are caster sugar and castor sugar the same thing?
Yes. Castor sugar is another name for caster sugar, so they are the same ingredient and convert identically. 1 tablespoon of caster sugar is 0.48 ounces under either name, and 2 tablespoons is 0.95 ounces. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 tbsp caster sugar in ounces?
1/2 tablespoon of caster sugar is 0.24 ounces. The ratio is fixed, so 1 tablespoon of caster sugar is 0.48 ounces and 2 tablespoons is 0.95 ounces. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
What is 1/4 tbsp caster sugar in ounces?
1/4 tablespoon (0.25 tablespoon) of caster sugar is 0.12 ounces. The ratio is fixed, so 1 tablespoon of caster sugar is 0.48 ounces and 2 tablespoons is 0.95 ounces. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

Other Ingredients

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