My granola recipe calls for 250 g of oats — how many cups is that?

250 g ÷ 90 g per cup ≈ 2.78 cups, so about 2 3/4 cups. Oats settle somewhat in their container, so give the container a shake or stir before scooping for a more consistent measurement.

Are quick oats and old-fashioned rolled oats measured the same way?

They're close, but quick oats are cut into smaller pieces and can pack slightly more densely — typically 5-10% heavier per cup than old-fashioned rolled oats. For most recipes this difference is negligible, but for precise baking, weigh rather than substitute by volume.

Rolled Oats: Cups to Grams Converter

Convert rolled oats between cups, tablespoons, teaspoons, milliliters, grams, and ounces.

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Rolled Oats: 90 Grams

Rolled oats are light and airy, weighing only about 90 g per cup — less than half the weight of an equal volume of flour. This is because the rolling process flattens the oat grains into flakes with significant air space between them, so a cup of oats contains much less actual material by weight than a cup of a denser ingredient.

Common Amounts

Rolled Oats cups to grams
Cups	Grams
1/4 cups	22 g
1/3 cups	30 g
1/2 cups	45 g
3/4 cups	68 g
1 cup	90 g
2 cups	180 g

Frequently Asked Questions

Last reviewed: 2026-06-11 · Source: USDA FoodData Central / King Arthur Baking ingredient weight charts · see our methodology

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Rolled Oats: Cups to Grams Converter

Common Amounts

Frequently Asked Questions

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