150 grams of caster sugar to cups
150 grams of caster sugar is 0.67 cups — near enough 2/3 cup.
The answer
0.67 cups
≈ 2/3 cup
Worked out from 225 grams per US cup: 150 ÷ 225 = 0.67. Approximate — density shifts with packing and brand.
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≈
Based on g per cup. Approximate — density varies with packing and brand.