Convert Teaspoons to Grams: Caster Sugar
Convert teaspoons of caster sugar to grams with this precise reference table. 1 teaspoon of caster sugar = 4.38g. There are 48 teaspoons in 1 US cup (210g) and 3 teaspoons in 1 tablespoon (13.1g). Teaspoon measurements are critical for accuracy when using caster sugar in small quantities — even a difference of 1g can matter in precise baking recipes.
Caster Sugar Teaspoons to Grams Table
| Teaspoons | Grams |
|---|---|
| 1/4 tsp | 1.09g |
| 1/2 tsp | 2.19g |
| 1 tsp | 4.38g |
| 1 1/2 tsp | 6.56g |
| 2 tsp | 8.75g |
| 3 tsp (1 tbsp) | 13.13g |
| 4 tsp | 17.5g |
| 6 tsp (2 tbsp) | 26.25g |
| 8 tsp | 35g |
| 12 tsp (1/4 cup) | 52.5g |
| 24 tsp (1/2 cup) | 105g |
| 48 tsp (1 cup) | 210g |
Based on USDA FoodData Central data (1 US cup = 240ml = 16 tablespoons = 48 teaspoons). Note: Caster sugar (superfine sugar) has finer crystals than regular granulated sugar. 1 cup = 210g. Dissolves faster than regular sugar — ideal for meringues, mousses, cold drinks. Common in UK/Australian recipes.
About Caster Sugar Density
The density of caster sugar determines how much it weighs per unit of volume. At 0.875g/ml, 1 US cup (240ml) of caster sugar weighs 210g under USDA standard conditions.
1 teaspoon = 1/48 cup = 5ml. For caster sugar, this equals 4.38g per teaspoon. Teaspoon measurements are critical for spices, extracts, and leavening agents where small differences have large effects. A kitchen scale is especially recommended for teaspoon-level precision.
Frequently Asked Questions
How many grams is 1 teaspoon of caster sugar?
1 teaspoon of caster sugar weighs approximately 4.38 grams (210g per cup ÷ 48 teaspoons per cup).
How many grams is 1/2 teaspoon of caster sugar?
1/2 teaspoon of caster sugar weighs approximately 2.19 grams.
How many teaspoons is 100g of caster sugar?
100g of caster sugar equals approximately 22.9 teaspoons.
Why is teaspoon-to-gram conversion important for caster sugar?
Small amounts like spices and leavening agents are often measured in teaspoons. For precision baking or cooking, knowing that 1 tsp of caster sugar = 4.38g helps avoid over- or under-measuring.