Convert Caster Sugar from Cup
How much is 1 cup of caster sugar?
1 cup of caster sugar (castor sugar) is 225 grams, about 7.94 ounces. 0.5 cups of caster sugar is 112.5 grams and 2 cups is 450 grams. Use the converter below for any amount.
- These figures use the metric cup (250 ml), so 1 cup is 225 g. A US cup is slightly smaller at 240 ml and holds about 216 g.
- Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
More about measuring Caster Sugar
Caster Sugar substitutes
Ran out? What to use instead of caster sugar →
No measuring cups? The tool below gets you close, and a measuring cup set keeps every batch the same.
Scoop it right, get measuring cupsCaster Sugar Measurement Converter
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0Caster Sugar Calculators & Baking Tools
Working with caster sugar? These tools handle the jobs a converter cannot.
- Jam and Marmalade Calculator Check the sugar a batch of preserve needs and how many jars it fills.
- Pan Size Converter Rescale a recipe for a different cake tin size.
- Oven to Air Fryer Converter Match the temperature and time when you swap the oven for an air fryer, fan oven, or slow cooker.
- Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.
- Volume Converter Switch between cups, tablespoons, teaspoons and millilitres for any ingredient.
Common Caster Sugar Conversions
Here are the most common caster sugar conversions from cups to grams.
| Cups | Grams |
|---|---|
| 0.25 cups | 56.25 g |
| 0.5 cups | 112.5 g |
| 0.75 cups | 168.75 g |
| 1 cup | 225 g |
| 1.25 cups | 281.25 g |
| 1.5 cups | 337.5 g |
| 2 cups | 450 g |
| 2.5 cups | 562.5 g |
| 3 cups | 675 g |
Caster Sugar Conversion Chart
The conversion chart below gives a quick reference for converting caster sugar from Cup to other measurements.
| cup | grams | ounces | lb | kg | cup(US) | tbsp | tsp |
|---|---|---|---|---|---|---|---|
| 0.25 cup | 56.25 g | 1.99 oz | 0.12 lb | 0.06 kg | 0.26 cup (US) | 4.17 tbsp | 12.5 tsp |
| 0.5 cup | 112.5 g | 3.97 oz | 0.25 lb | 0.11 kg | 0.52 cup (US) | 8.33 tbsp | 25 tsp |
| 1 cup | 225 g | 7.94 oz | 0.5 lb | 0.23 kg | 1.04 cup (US) | 16.67 tbsp | 50 tsp |
| 2 cup | 450 g | 15.88 oz | 0.99 lb | 0.45 kg | 2.08 cup (US) | 33.33 tbsp | 100 tsp |
Frequently Asked Questions
- How much is 1 cup of caster sugar?
- 1 cup of caster sugar is 225 grams, or 7.94 ounces. The ratio is fixed, so 0.5 cups of caster sugar is 112.5 grams and 2 cups is 450 grams. Whatever unit your recipe uses, enter the amount in the converter above or read the conversion chart on this page for the most common quantities. Open the caster sugar converter
- How much is 1 cup of caster sugar in grams?
- 1 cup of caster sugar is 225 grams. The conversion scales in a straight line, so 0.5 cups is 112.5 grams and 2 cups is 450 grams. Multiply or divide that figure to match whatever your recipe needs, or use the converter above for an exact grams reading at any amount. 1 cup caster sugar in grams
- How much is 1 cup of caster sugar in ounces?
- 1 cup of caster sugar is 7.94 ounces. The ratio is fixed, so 0.5 cups is 3.97 ounces and 2 cups is 15.88 ounces. Use the converter above for any other amount, or see the chart on this page for the common quantities at a glance. 1 cup caster sugar in ounces
- How do cups and tablespoons compare as units?
- Cups and tablespoons are both volume units, so the conversion between them does not vary by ingredient. One metric cup holds about 16.67 tablespoons or 50 teaspoons, and the ratio stays fixed regardless of what you are measuring. The volume converter handles any amount between cups, tablespoons, teaspoons, and millilitres. Cups to tablespoons
Measurement Options
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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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