How many US cups is 200 grams of caster sugar?

200 grams of caster sugar is 0.93 US cups. The conversion is fixed, so 100 grams is 0.46 US cups and 400 grams is 1.85 US cups. Halving or doubling a recipe keeps the same ratio. Use the converter above for any other amount, or the conversion chart on this page for the common ones.

What is 225g caster sugar in US cups?

225 grams of caster sugar is 1.04 US cups. The conversion is fixed, so 112.5 grams is 0.52 US cups and 450 grams is 2.08 US cups. Halving or doubling a recipe keeps the same ratio. Use the converter above for any other amount, or the conversion chart on this page for the common ones.

What is 500g caster sugar in US cups?

500 grams of caster sugar is 2.31 US cups. The conversion is fixed, so 250 grams is 1.16 US cups and 1 kg is 4.63 US cups. Halving or doubling a recipe keeps the same ratio. Use the converter above for any other amount, or the conversion chart on this page for the common ones.

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. 100 grams of caster sugar is 0.46 US cups under either name, and 200 grams is 0.93 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.

Convert Caster Sugar from Grams to Cup (US)

How many US cups is 100 grams of caster sugar?

100 grams of caster sugar (castor sugar) is 0.46 US cups. 200 grams of caster sugar is 0.93 US cups. 225 grams of caster sugar is 1.04 US cups. 500 grams of caster sugar is 2.31 US cups. Use the converter below for any amount.

These figures use the US cup (240 ml), so 1 cup is 216 g. A metric cup is slightly larger at 250 ml and holds about 225 g. Use the metric cup converter →
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 →

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 what 100 grams of sugar is in US cups.

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 what 100 grams of raw sugar is in US cups.

Out of caster sugar? See caster sugar substitutes →

No scale? The tool below gives a good estimate, but for exact bakes a digital kitchen scale removes the guesswork.

Weigh it exact, get a scale

Caster Sugar Measurement Converter

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1.16 Cup (US)

Common Caster Sugar Conversions

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

Grams	Cups (US)
50 g	0.23 cups (US)
100 g	0.46 cups (US)
125 g	0.58 cups (US)
150 g	0.69 cups (US)
175 g	0.81 cups (US)
200 g	0.93 cups (US)
225 g	1.04 cups (US)
250 g	1.16 cups (US)
300 g	1.39 cups (US)
400 g	1.85 cups (US)
450 g	2.08 cups (US)
500 g	2.31 cups (US)

Caster Sugar Conversion Chart

The conversion chart below gives a quick reference for converting caster sugar from Grams to Cup (US) and other measurements.

grams	cup(US)	cup	ounces	lb	kg	tbsp	tsp
50 g	0.23 cup (US)	0.22 cup	1.76 oz	0.11 lb	0.05 kg	3.7 tbsp	11.11 tsp
100 g	0.46 cup (US)	0.44 cup	3.53 oz	0.22 lb	0.1 kg	7.41 tbsp	22.22 tsp
125 g	0.58 cup (US)	0.56 cup	4.41 oz	0.28 lb	0.13 kg	9.26 tbsp	27.78 tsp
150 g	0.69 cup (US)	0.67 cup	5.29 oz	0.33 lb	0.15 kg	11.11 tbsp	33.33 tsp
175 g	0.81 cup (US)	0.78 cup	6.18 oz	0.39 lb	0.18 kg	12.96 tbsp	38.89 tsp
200 g	0.93 cup (US)	0.89 cup	7.06 oz	0.44 lb	0.2 kg	14.81 tbsp	44.44 tsp
225 g	1.04 cup (US)	1 cup	7.94 oz	0.5 lb	0.23 kg	16.67 tbsp	50 tsp
250 g	1.16 cup (US)	1.11 cup	8.82 oz	0.55 lb	0.25 kg	18.52 tbsp	55.56 tsp
300 g	1.39 cup (US)	1.33 cup	10.59 oz	0.66 lb	0.3 kg	22.22 tbsp	66.67 tsp
400 g	1.85 cup (US)	1.78 cup	14.12 oz	0.88 lb	0.4 kg	29.63 tbsp	88.89 tsp
450 g	2.08 cup (US)	2 cup	15.88 oz	0.99 lb	0.45 kg	33.33 tbsp	100 tsp
500 g	2.31 cup (US)	2.22 cup	17.64 oz	1.1 lb	0.5 kg	37.04 tbsp	111.11 tsp

For grams to cups with a different ingredient, use the grams to cups converter for a quick-reference table.

For the reverse conversion, see 1 US cup of caster sugar in grams.

Frequently Asked Questions

How many US cups is 100 grams of caster sugar?: 100 grams of caster sugar is 0.46 US cups. The conversion is fixed, so 50 grams is 0.23 US cups and 200 grams is 0.93 US cups. Halving or doubling a recipe keeps the same ratio. Use the converter above for any other amount, or the conversion chart on this page for the common ones. Open the caster sugar converter
How many US cups is 200 grams of caster sugar?: 200 grams of caster sugar is 0.93 US cups. The conversion is fixed, so 100 grams is 0.46 US cups and 400 grams is 1.85 US cups. Halving or doubling a recipe keeps the same ratio. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
What is 225g caster sugar in US cups?: 225 grams of caster sugar is 1.04 US cups. The conversion is fixed, so 112.5 grams is 0.52 US cups and 450 grams is 2.08 US cups. Halving or doubling a recipe keeps the same ratio. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
What is 500g caster sugar in US cups?: 500 grams of caster sugar is 2.31 US cups. The conversion is fixed, so 250 grams is 1.16 US cups and 1 kg is 4.63 US cups. Halving or doubling a recipe keeps the same ratio. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
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. 100 grams of caster sugar is 0.46 US cups under either name, and 200 grams is 0.93 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.

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