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Oats — Grams in Cups
1 gram of oats equals 0.00641 cups*
Density-based conversion — ingredient densities cross-checked against the FAO/INFOODS density database and USDA FoodData Central. The exact weight varies slightly with brand and packing. How we calculate · Reviewed August 21, 2026.
About oats measurements
Rolled oats measure to about 0.66 g/ml, near 156 g per US cup, but flake style changes everything. Thick old-fashioned rolled oats leave more air than fine quick oats, and dense steel-cut oats weigh far more per cup, so never assume one type's cup weight for another.
Grams of oats equivalent in cups?
FAQs on oats weight to volume conversion
1 gram of oats equals how many cups?
1 gram of oats is equivalent 0.00641 cups.
How much is 0.00641 cups of oats in grams?
0.00641 cups of oats equals 1 gram.
Oats: Grams to cups — common amounts
| Grams | Cups |
|---|---|
| 10 grams | 0.0641 cups |
| 25 grams | 0.16 cups |
| 50 grams | 0.321 cups |
| 100 grams | 0.641 cups |
| 150 grams | 0.962 cups |
| 200 grams | 1.28 cups |
| 250 grams | 1.6 cups |
| 300 grams | 1.92 cups |
| 500 grams | 3.21 cups |
| 1000 grams | 6.41 cups |
References:
Weight to Volume Conversions - Recipes
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.