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Caster sugar grams to cups

One US cup of caster sugar weighs 190 g, a tablespoon 11.9 g and a teaspoon 3.96 g. So 100 g of caster sugar is ⅓ cup + 3 tbsp (0.526 cups).

100 grams of caster sugar = 0.526 cups

Measure it: ⅓ cup + 3 tbsp

Ingredient

Metric cup (250 ml)

Caster sugar grams to cups chart

Grams	US cups	How to measure	Tablespoons
25 g	0.132	2 tbsp + ¼ tsp	2.11
50 g	0.263	¼ cup + ¾ tsp	4.21
75 g	0.395	⅓ cup + 1 tbsp	6.32
100 g	0.526	⅓ cup + 3 tbsp	8.42
125 g	0.658	⅔ cup	10.5
150 g	0.789	⅔ cup + 2 tbsp	12.6
200 g	1.05	1 cup + 1 tbsp	16.8
250 g	1.32	1 ⅓ cups	21.1
300 g	1.58	1 ½ cups + 1 tbsp	25.3
400 g	2.11	2 ⅛ cups	33.7
500 g	2.63	2 ⅔ cups	42.1
1000 g	5.26	5 ¼ cups	84.2

Cups of caster sugar to grams

Cups	Grams	Ounces
⅛ cup	23.8 g	0.838 oz
¼ cup	47.5 g	1.68 oz
⅓ cup	63.3 g	2.23 oz
½ cup	95 g	3.35 oz
⅔ cup	127 g	4.47 oz
¾ cup	143 g	5.03 oz
1 cup	190 g	6.7 oz
1½ cups	285 g	10.1 oz
2 cups	380 g	13.4 oz
3 cups	570 g	20.1 oz
4 cups	760 g	26.8 oz

Where 190 g comes from

King Arthur Baking ingredient weight chart (“Baker's Special Sugar (superfine sugar, castor sugar)”): 190 g per cup. Chart

This page uses 190 g (King Arthur).

Caster sugar (superfine sugar in the US) has smaller crystals than granulated. USDA has no separate entry; King Arthur measures it at 190 g a cup. In most recipes you can use granulated sugar instead.

How to measure caster sugar by the cup

Stir it to loosen, spoon it into a dry measuring cup until heaped, then sweep the top level with the back of a knife. Do not tap or press the cup.

Questions

How many cups is 100 g of caster sugar?

⅓ cup + 3 tbsp (0.526 cups), measured the spoon-and-level way.

How many grams is 1 cup of caster sugar?

190 g according to King Arthur Baking.

How many grams in a tablespoon of caster sugar?

About 11.9 g; a teaspoon is 3.96 g.

How many cups is 500 g of caster sugar?

2 ⅔ cups (2.63 cups).