Convert Rolled Oats from Ounces to Cup (US)
How many US cups is 1 ounce of rolled oats?
1 ounce of rolled oats (oatmeal) is 0.33 US cups. 2 ounces of rolled oats is 0.66 US cups. 4 ounces of rolled oats is 1.31 US cups. 6 ounces of rolled oats is 1.97 US cups. Use the converter below for any amount.
- These figures use the US cup (240 ml). A metric cup is slightly larger at 250 ml, so it holds a little more. Use the metric cup converter →
- Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
More about measuring Rolled Oats
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0.33 Cup (US)Rolled Oats Calculators & Baking Tools
Working with rolled oats? These tools handle the jobs a converter cannot.
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- Oven to Air Fryer Converter Match the temperature and time when you swap the oven for an air fryer, fan oven, or slow cooker.
- Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.
Common Rolled Oats Conversions
Here are the most common rolled oats conversions from ounces to cups (US).
| Ounces | Cups (US) |
|---|---|
| 1 oz | 0.33 cups (US) |
| 2 oz | 0.66 cups (US) |
| 3 oz | 0.99 cups (US) |
| 4 oz | 1.31 cups (US) |
| 5 oz | 1.64 cups (US) |
| 6 oz | 1.97 cups (US) |
| 8 oz | 2.63 cups (US) |
| 10 oz | 3.29 cups (US) |
| 12 oz | 3.94 cups (US) |
For the reverse conversion, see 1 US cup of rolled oats in ounces.
Frequently Asked Questions
- How many US cups is 1 ounce of rolled oats?
- 1 ounce of rolled oats is 0.33 US cups. The conversion is fixed, so 2 ounces is 0.66 US cups and 4 ounces is 1.31 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones. Open the rolled oats converter
- How many US cups is 2 ounces of rolled oats?
- 2 ounces of rolled oats is 0.66 US cups. The conversion is fixed, so 1 ounce is 0.33 US cups and 4 ounces is 1.31 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
- What is 4 oz rolled oats in US cups?
- 4 ounces of rolled oats is 1.31 US cups. The conversion is fixed, so 1 ounce is 0.33 US cups and 2 ounces is 0.66 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
- What is 6 oz rolled oats in US cups?
- 6 ounces of rolled oats is 1.97 US cups. The conversion is fixed, so 1 ounce is 0.33 US cups and 2 ounces is 0.66 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
- How much is 1 ounce of oatmeal in US cups?
- Oatmeal is another name for rolled oats, so 1 ounce of oatmeal is 0.33 US cups, exactly the same as rolled oats. The figure does not change with the name: 2 ounces is 0.66 US cups and 0.5 ounces is 0.16 US cups. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Related to Rolled Oats
Desiccated Coconut
Desiccated coconut works alongside oats in granola, flapjacks, and crumble toppings, adding sweetness and a fine crunch where oats give chew. They are close in weight (88 g vs 90 g per cup), so weigh rather than scoop when the ratio matters. See our Desiccated Coconut converter.
Oat Flour
Oat flour is rolled oats milled to a fine powder, close in weight (100 g vs 90 g per cup). Blend rolled oats to make your own oat flour, or weigh the oats when a recipe gives one form but you have the other. See our Oat Flour converter.
Oat Milk
Oat milk is made by blending rolled oats with water and straining the solids. Soak and blend the oats for a homemade carton, and weigh the oats when scaling the batch. See our Oat Milk converter.
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