How Much Is 0.33 Cups of Rolled Oats in Ounces?
0.33 cups of rolled oats weighs 1.05 oz. This is based on rolled oats having a density of 90g per cup. Because cups measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 0.33 cups.
Formula and Step-by-Step
- Start with 0.33 cups of rolled oats
- 1 cup of rolled oats = 90g
- 0.33 × 90 = 29.7g
- Convert grams to ounces: 29.7 ÷ 28.3495 = 1.05 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Oats come in multiple forms (rolled, steel-cut, instant) that have different densities. Steel-cut oats are nearly twice as heavy per cup as rolled oats.
Rolled Oats at Different Amounts
How rolled oats scales across common cups measurements. Your amount (0.33 cups) is highlighted.
For reference, 0.33 cups of rolled oats (29.7g) is close in weight to a slice of bread (30g).
Other Amounts of Rolled Oats
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 0.79 oz | 0.84 oz | 0.95 oz |
| 0.33 cups | 1.05 oz | 1.11 oz | 1.26 oz |
| 0.5 cups | 1.59 oz | 1.68 oz | 1.91 oz |
| 0.75 cups | 2.38 oz | 2.52 oz | 2.86 oz |
| 1 cup | 3.17 oz | 3.35 oz | 3.81 oz |
| 1.5 cups | 4.76 oz | 5.03 oz | 5.72 oz |
| 2 cups | 6.35 oz | 6.71 oz | 7.63 oz |
| 3 cups | 9.52 oz | 10.06 oz | 11.44 oz |
| 4 cups | 12.70 oz | 13.42 oz | 15.25 oz |
| 5 cups | 15.87 oz | 16.77 oz | 19.06 oz |
Understanding the Units
What is a Cup?
A cup is a US customary unit of volume equal to 236.588 milliliters or 8 fluid ounces. It is the most common volume measurement in American recipes. One cup can be divided into 16 tablespoons or 48 teaspoons.
What is an Ounce?
Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.