Caster sugar: grams to cups

One cup of caster sugar weighs 200 grams. So 100 g is about 0.50 cup, 250 g is about 1.25 cups, and 500 g is about 2.50 cups.

1 ¼ cups
1.25 cups · 8.8 oz

Worth knowing. Caster is just finer granulated sugar, so the weight per cup is effectively the same. UK charts say 225 g because a UK cup is 250 ml, not 237 ml.

Density reference: King Arthur Baking ingredient weight chart

Caster sugar conversion chart

GramsCupsOunces
50 g¼1.8 oz
100 g½3.5 oz
125 g4.4 oz
150 g¾5.3 oz
200 g17.1 oz
250 g1 ¼8.8 oz
300 g1 ½10.6 oz
375 g1 ⅞13.2 oz
500 g2 ½17.6 oz
1000 g535.3 oz

Worth knowing. Caster is just finer granulated sugar, so the weight per cup is effectively the same. UK charts say 225 g because a UK cup is 250 ml, not 237 ml.

Density reference: King Arthur Baking ingredient weight chart

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