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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 0.0064 cups.
How much is 0.0064 cups of oats in grams?
0.0064 cups of oats equals 1 gram.
Oats Conversion Chart Near 1 Gram
| Grams to Cups of Oats | |
|---|---|
| 1 gram | 0.00641 cups |
| 1.1 grams | 0.00706 cups |
| 1.2 grams | 0.0077 cups |
| 1.3 grams | 0.00834 cups |
| 1.4 grams | 0.00898 cups |
| 1.5 grams | 0.00962 cups |
| 1.6 grams | 0.0103 cups |
| 1.7 grams | 0.0109 cups |
| 1.8 grams | 0.0115 cups |
| 1.9 grams | 0.0122 cups |
| 2 grams | 0.0128 cups |
| 2.1 grams | 0.0135 cups |
| 2.2 grams | 0.0141 cups |
| 2.3 grams | 0.0148 cups |
| 2.4 grams | 0.0154 cups |
| 2.5 grams | 0.016 cups |
| 2.6 grams | 0.0167 cups |
| 2.7 grams | 0.0173 cups |
| 2.8 grams | 0.018 cups |
| 2.9 grams | 0.0186 cups |
| 3 grams | 0.0192 cups |
| 3.1 grams | 0.0199 cups |
| 3.2 grams | 0.0205 cups |
| 3.3 grams | 0.0212 cups |
| 3.4 grams | 0.0218 cups |
Note: Values are rounded to 3 significant figures. Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…).
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 ☺.