Convert Caster Sugar from Tablespoon to Teaspoon
How many teaspoons is 1 tablespoon of caster sugar?
1 tablespoon of caster sugar (castor sugar) is 3 teaspoons. 2 tablespoons of caster sugar is 6 teaspoons. 1/2 tablespoon of caster sugar is 1.5 teaspoons. 1/4 tablespoon (0.25 tablespoon) of caster sugar is 0.75 teaspoons. 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 →
- One metric tablespoon of caster sugar weighs about 13.5 grams. A US tablespoon (14.79 ml) holds about 13.3 grams and an Australian tablespoon (20 ml) about 18 grams.
- A little over or under won't ruin the bake. An extra spoon mainly makes it sweeter.
- A teaspoon here is the 5 ml standard, the same in the UK, Europe, and Australia. A US teaspoon is fractionally smaller at about 4.9 ml. When teaspoon size matters →
- A little over or under won't ruin the bake. An extra spoon mainly makes it sweeter.
More about measuring Caster Sugar
Caster Sugar substitutes
Ran out? What to use instead of caster sugar →
No measuring spoons? The tool below gets you close, and a measuring spoon set keeps small amounts accurate.
Nail small amounts, get spoonsCaster Sugar Measurement Converter
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3 TeaspoonCaster Sugar Calculators & Baking Tools
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Common Caster Sugar Conversions
Here are the most common caster sugar conversions from tablespoons to teaspoons.
| Tablespoons | Teaspoons |
|---|---|
| 1 tbsp | 3 tsp |
| 2 tbsp | 6 tsp |
| 3 tbsp | 9 tsp |
| 4 tbsp | 12 tsp |
| 6 tbsp | 18 tsp |
| 8 tbsp | 24 tsp |
| 10 tbsp | 30 tsp |
| 12 tbsp | 36 tsp |
| 16 tbsp | 48 tsp |
This is a volume conversion, so the result is the same for every ingredient. Use the tablespoons to teaspoons volume converter to switch between cups, tablespoons, teaspoons, and millilitres without weighing.
Frequently Asked Questions
- What is 1 tablespoon of caster sugar in teaspoons?
- 1 tablespoon of caster sugar is 3 teaspoons. The ratio is fixed, so 2 tablespoons of caster sugar is 6 teaspoons and 0.5 tablespoons is 1.5 teaspoons. 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 teaspoons is 1.5 tablespoons of caster sugar?
- 1.5 tablespoons of caster sugar is 4.5 teaspoons. The ratio is fixed, so 1 tablespoon of caster sugar is 3 teaspoons and 2 tablespoons is 6 teaspoons. Type any other amount into the converter above for the exact figure, or use the chart above for the common ones.
- What is 2 tablespoons of caster sugar in teaspoons?
- 2 tablespoons of caster sugar is 6 teaspoons. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 tablespoon of caster sugar is 3 teaspoons, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact teaspoons reading.
- How many tablespoons of caster sugar is 3 teaspoons?
- 3 teaspoons of caster sugar is 1 tablespoon. The conversion works the same in reverse, so you can switch between teaspoons and tablespoons without changing the result. This helps when a recipe lists tablespoons but you would rather weigh or measure in teaspoons. The converter above and the chart above cover both directions for any amount.
- How much is 1 tablespoon of castor sugar in teaspoons?
- Castor sugar is another name for caster sugar, so 1 tablespoon of castor sugar is 3 teaspoons, exactly the same as caster sugar. The figure does not change with the name: 2 tablespoons is 6 teaspoons and 0.5 tablespoons is 1.5 teaspoons. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Related to Caster Sugar
Sugar
Granulated sugar swaps 1:1 for caster sugar in most recipes, though its larger crystals dissolve more slowly. For meringues or smooth sponges, pulse granulated sugar in a food processor for a few seconds to bring it closer to caster's finer grain. See our Sugar converter.
Icing Sugar
Icing sugar is milled far finer and packs much lighter than caster (125 g vs 225 g per cup), so it is not a 1:1 swap. Use it only where a powder works, such as uncooked frostings and dusting, not for creaming into a cake batter. See our Icing Sugar converter.
Raw Sugar
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.
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