1 oz of Rolled Oats to Cups
1 ounce of rolled oats = about ⅓ cup
That's 0.31 US cups, or 0.3 metric cups (250 ml).
1 ounce of rolled oats in other units
- Grams
- 28
- US cups
- 0.31
- Metric cups (250 ml)
- 0.3
- Tablespoons
- 5.04
- Milliliters
- 75
How to convert ounces of rolled oats to cups
Weight ounces first become grams (1 oz = 28.35 g), so 1 oz = 28 g. One US cup of rolled oats weighs 90 g, so 28 ÷ 90 = 0.31 cups.
Grains settle when shaken, so pour them in loosely and level off rather than tapping the cup.
Rolled Oats: ounces to cups chart
| Ounces | Cups | Exact |
|---|---|---|
| 1 ounce | about ⅓ cup | 0.31 cups |
| 2 ounces | about ⅝ cup | 0.63 cups |
| 3 ounces | about 1 cup | 0.94 cups |
| 4 ounces | about 1¼ cups | 1.26 cups |
| 5 ounces | about 1⅝ cups | 1.57 cups |
| 6 ounces | about 1⅞ cups | 1.89 cups |
| 8 ounces | about 2½ cups | 2.52 cups |
| 10 ounces | about 3⅛ cups | 3.15 cups |
| 12 ounces | about 3¾ cups | 3.78 cups |
| 16 ounces | about 5 cups | 5.04 cups |
1 ounce of other ingredients
The same amount weighs very different things depending on the ingredient:
| Ingredient | Cups | Exact |
|---|---|---|
| White Rice (uncooked) | about 2½ tablespoons | 0.15 cups |
| Brown Rice (uncooked) | about 2½ tablespoons | 0.15 cups |
| Quinoa (uncooked) | about 2¾ tablespoons | 0.17 cups |
| Dried Lentils | about 2¼ tablespoons | 0.15 cups |
| Couscous (uncooked) | about 2½ tablespoons | 0.16 cups |
| Dry Breadcrumbs | ¼ cup | 0.25 cups |
| Panko Breadcrumbs | about ⅝ cup | 0.57 cups |
| Chia Seeds | about 2¾ tablespoons | 0.18 cups |
| Ground Flaxseed | about ¼ cup | 0.28 cups |
| Sesame Seeds | about 3¼ tablespoons | 0.2 cups |
| All-Purpose Flour | about ¼ cup | 0.23 cups |
| Bread Flour | about ¼ cup | 0.22 cups |
| Almond Flour | about ⅓ cup | 0.3 cups |
| Granulated Sugar | about 2¼ tablespoons | 0.14 cups |
More rolled oats conversions
- All rolled oats conversions
- 100 grams of rolled oats to cups
- 1 cup of rolled oats to grams
- 1 tablespoon of rolled oats to grams
Frequently asked questions
How many cups is 1 ounce of rolled oats?
1 ounce of rolled oats is about ⅓ cup (0.31 cups), based on 90 g per level US cup.
Is it different with a UK or Australian cup?
Slightly. UK, Australian and New Zealand recipes use a 250 ml metric cup, which is about 6% bigger than a US cup (236.6 ml). In metric cups, 1 ounce of rolled oats is 0.3 cups.
Should I weigh rolled oats or measure it by volume?
Grains settle when shaken, so pour them in loosely and level off rather than tapping the cup. Weighing is always more accurate, which is why grams are the safest choice for baking.