How do I scale the original portion?

Start with 89 g per 1 cup. Multiply that gram amount by the requested number of source portions. The generated amount table uses the same calculation as the converter; displayed results are rounded only at the end.

Can I convert milliliters of rolled oats to grams here?

No independently verified density is available for this ingredient in this release. Cup/spoon reference weights cannot establish one without a verified source cup volume. Volume-to-volume and grams-to-ounces conversions still work.

Rolled Oats: Cups to Grams Converter

Q: Which preparation does this rolled oats reference cover?

Rolled oats, old-fashioned or quick-cooking. Use this entry for old-fashioned or quick-cooking oats. The chart lists a separate King Arthur branded rolled-oats amount; steel-cut and prepared oats are also different entries.

Use ingredient estimates where supported, or convert volume and mass units. Check cooking measurement conventions.

Ingredient

Amount

From

Rolled Oats: Estimate: 89 Grams

Estimate from the source portion, scaled using 1 cup = 16 tablespoons = 48 teaspoons. The source chart does not specify its cup volume in mL. Follow your recipe’s supplied grams when available.

Reference: 89 g per 1 cup. Rolled oats, old-fashioned or quick-cooking. King Arthur Baking ingredient weight chart.

Use this entry for old-fashioned or quick-cooking oats. The chart lists a separate King Arthur branded rolled-oats amount; steel-cut and prepared oats are also different entries. The source portion is 89 g per 1 cup. Cups and spoons are estimates scaled from this rounded reference using 16 tablespoons or 48 teaspoons per cup; the chart does not state its cup volume in mL.

Common Amounts (estimates)

Estimate from the source portion, scaled using 1 cup = 16 tablespoons = 48 teaspoons. The source chart does not specify its cup volume in mL. Follow your recipe’s supplied grams when available.

Rolled Oats: estimated grams from the cited reference; values rounded to 2 decimal places.
Cups	Grams
1/4 cups	22.25 g
1/3 cups	29.67 g
1/2 cups	44.5 g
2/3 cups	59.33 g
3/4 cups	66.75 g
1 cup	89 g
2 cups	178 g

Frequently Asked Questions

Last reviewed: 2026-10-05 · Source: King Arthur Baking ingredient weight chart · see our methodology

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Rolled Oats: Cups to Grams Converter

Common Amounts (estimates)

Frequently Asked Questions

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