400 grams of quick oats to cups
400 grams of quick oats is 4.44 cups — near enough 4 1/3 cups + 1 tbsp + 2 tsp.
The answer
4.44 cups
≈ 4 1/3 cups + 1 tbsp + 2 tsp
Worked out from 90 grams per US cup: 400 ÷ 90 = 4.44. Approximate — density shifts with packing and brand.
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≈
Based on g per cup. Approximate — density varies with packing and brand.