What is 1 cup of caster sugar in grams?

1 cup of caster sugar in grams is 225 grams. The ratio is fixed, so 2 cups is 450 grams and half a cup is 112.5 grams. Weighing caster sugar by the cup is the most common way to measure it for baking. See the full cup to grams chart for caster sugar, or use the converter on this page for any other amount.

How many cups is 100 grams of caster sugar?

100 grams of caster sugar is 0.44 cups. The conversion scales in a straight line, so 200 grams is 0.89 cups and 50 grams is 0.22 cups. Grams to cups helps when a recipe gives a weight but you measure with cups. See the full grams to cups chart for caster sugar for more amounts.

How many tablespoons is 50 grams of caster sugar?

50 grams of caster sugar is 3.7 tablespoons. The ratio is fixed, so 100 grams is 7.41 tablespoons and 25 grams is 1.85 tablespoons. Tablespoons are handy for smaller amounts when you would rather not get out the scales. See the full grams to tablespoons chart for caster sugar for the common amounts.

What is 0.25 cups of caster sugar in tablespoons?

0.25 cups of caster sugar is 4.17 tablespoons. This is the same for any ingredient, since cups and tablespoons are both volume units and do not depend on what you are measuring. One cup is about 16.67 tablespoons, so 0.5 cups is 8.33 tablespoons. Use the volume converter to switch between cups, tablespoons, teaspoons, and millilitres for any amount.

Convert Caster Sugar measurements

Caster Sugar Measurement Converter

Use the tool below to convert caster sugar from the measurements in your recipe to the measurements that you need.

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

Related Caster Sugar Ingredients

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 →

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Caster Sugar Calculators & Baking Tools

Working with caster sugar? These tools handle the jobs a converter cannot.

Pan Size Converter Rescale a recipe for a different cake tin size.
Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.

Common Caster Sugar Conversions

Here are the most common caster sugar conversions from grams to cups.

Grams	Cups
50 g	0.22 cups
100 g	0.44 cups
125 g	0.56 cups
150 g	0.67 cups
175 g	0.78 cups
200 g	0.89 cups
225 g	1 cup
250 g	1.11 cups
300 g	1.33 cups
400 g	1.78 cups
450 g	2 cups
500 g	2.22 cups

Caster Sugar Conversion Chart

The conversion chart below gives a quick reference for converting caster sugar to different measurements.

grams	cup	ounces	lb	kg	cup(US)	tbsp	tsp
100 g	0.44 cup	3.53 oz	0.22 lb	0.1 kg	0.46 cup (US)	7.41 tbsp	22.22 tsp
150 g	0.67 cup	5.29 oz	0.33 lb	0.15 kg	0.69 cup (US)	11.11 tbsp	33.33 tsp
250 g	1.11 cup	8.82 oz	0.55 lb	0.25 kg	1.16 cup (US)	18.52 tbsp	55.56 tsp
500 g	2.22 cup	17.64 oz	1.1 lb	0.5 kg	2.31 cup (US)	37.04 tbsp	111.11 tsp
750 g	3.33 cup	26.47 oz	1.65 lb	0.75 kg	3.47 cup (US)	55.56 tbsp	166.67 tsp

Frequently Asked Questions

What is 1 cup of caster sugar in grams?: 1 cup of caster sugar in grams is 225 grams. The ratio is fixed, so 2 cups is 450 grams and half a cup is 112.5 grams. Weighing caster sugar by the cup is the most common way to measure it for baking. See the full cup to grams chart for caster sugar, or use the converter on this page for any other amount. 1 cup caster sugar in grams
How many cups is 100 grams of caster sugar?: 100 grams of caster sugar is 0.44 cups. The conversion scales in a straight line, so 200 grams is 0.89 cups and 50 grams is 0.22 cups. Grams to cups helps when a recipe gives a weight but you measure with cups. See the full grams to cups chart for caster sugar for more amounts. 100g caster sugar to cups
How many tablespoons is 50 grams of caster sugar?: 50 grams of caster sugar is 3.7 tablespoons. The ratio is fixed, so 100 grams is 7.41 tablespoons and 25 grams is 1.85 tablespoons. Tablespoons are handy for smaller amounts when you would rather not get out the scales. See the full grams to tablespoons chart for caster sugar for the common amounts. 50g caster sugar to tablespoons
What is 0.25 cups of caster sugar in tablespoons?: 0.25 cups of caster sugar is 4.17 tablespoons. This is the same for any ingredient, since cups and tablespoons are both volume units and do not depend on what you are measuring. One cup is about 16.67 tablespoons, so 0.5 cups is 8.33 tablespoons. Use the volume converter to switch between cups, tablespoons, teaspoons, and millilitres for any amount. Open the volume converter

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