How Much Is 1.57 Cups of Rolled Oats in Ounces?
1.57 cups of rolled oats weighs 4.98 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 1.57 cups.
Formula and Step-by-Step
- Start with 1.57 cups of rolled oats
- 1 cup of rolled oats = 90g
- 1.57 × 90 = 141.3g
- Convert grams to ounces: 141.3 ÷ 28.3495 = 4.98 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Rolled oats weigh 90g per cup. Always match the oat type your recipe specifies.
Rolled Oats at Different Amounts
How rolled oats scales across common cups measurements. Your amount (1.57 cups) is highlighted.
For reference, 1.57 cups of rolled oats (141.3g) is close in weight to a baseball (145g).
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 |
| 1.57 cups | 4.98 oz | 5.27 oz | 5.99 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?
The US cup (236.588 ml) is slightly smaller than the metric cup used in Australia and some other countries (250 ml). When following recipes from different countries, check which cup standard is being used.
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.