🥄 Caster Sugar: Cups to Grams

1 US cup of caster sugar (superfine sugar) weighs 190 g when spooned into the cup and levelled. Below are the cups, spoons and grams-to-cups charts.

1 cup190 g
½ cup95 g
1 tablespoon12 g
1 teaspoon4 g

Convert caster sugar

Caster Sugar: US cups to grams

US cupsGramsOunces
⅛ cup24 g0.84 oz
¼ cup48 g1.68 oz
⅓ cup63 g2.2 oz
½ cup95 g3.4 oz
⅔ cup127 g4.5 oz
¾ cup143 g5 oz
1 cup190 g6.7 oz
1 ½ cups285 g10.1 oz
2 cups380 g13.4 oz
3 cups570 g20.1 oz
4 cups760 g26.8 oz

Caster Sugar: tablespoons and teaspoons to grams

Spoons (level)Grams
¼ teaspoon1 g
½ teaspoon2 g
1 teaspoon4 g
1 tablespoon12 g
2 tablespoons24 g
3 tablespoons36 g
4 tablespoons (¼ cup)48 g

Grams of caster sugar to cups

GramsUS cupsTablespoons
10 g0.05 cups0.8 tbsp
25 g0.13 cups2.1 tbsp
50 g0.26 cups4.2 tbsp
100 g0.53 cups8.4 tbsp
125 g0.66 cups10.5 tbsp
150 g0.79 cups12.6 tbsp
200 g1.05 cups16.8 tbsp
250 g1.32 cups21.1 tbsp
300 g1.58 cups25.3 tbsp
500 g2.63 cups42.1 tbsp
1,000 g5.26 cups84.2 tbsp

Metric, UK and Australian measures

MeasureGrams
1 metric cup (250 ml)201 g
½ metric cup100 g
1 UK/metric tablespoon (15 ml)12 g
1 Australian tablespoon (20 ml)16 g
100 ml80 g

A metric cup (250 ml, used in Australia, New Zealand, Canada and many Indian recipes) holds about 6% more than a US cup.

How to measure caster sugar

Granulated sugars are levelled; brown sugar is packed firmly into the cup. Syrups are easiest to measure in a lightly oiled cup.

Also called: superfine sugar.

Weights are for a level US cup (236.6 ml) and level spoons, from King Arthur Baking's ingredient weight chart. Brands and packing vary by a few per cent; when a recipe gives grams, weigh rather than measure.

Compare: other sugars & sweeteners (1 cup)

Frequently asked questions

How many grams is 1 cup of caster sugar?

1 level US cup of caster sugar weighs about 190 g (6.7 oz). A 250 ml metric cup weighs about 201 g.

How many grams is 1 tablespoon of caster sugar?

1 level tablespoon of caster sugar is about 12 g, and 1 teaspoon is about 4 g.

How many cups is 100 grams of caster sugar?

100 g of caster sugar is about 0.53 cups, or 8.4 tablespoons.

Why is a cup of caster sugar not as heavy as a cup of water?

A cup measures volume, not weight. Caster Sugar is full of air between the particles, so a cup weighs much less than a cup of water (190 g vs 237 g).

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