300 grams of cornstarch to cups
300 grams of cornstarch is 2.65 cups — near enough 2 2/3 cups.
The answer
2.65 cups
≈ 2 2/3 cups
Worked out from 113 grams per US cup: 300 ÷ 113 = 2.65. Approximate — density shifts with packing and brand.
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≈
Based on g per cup. Approximate — density varies with packing and brand.