How Much Is 0.31 Cups of Cornstarch in Ounces?
Converting 0.31 cups of cornstarch to ounces gives 1.40 oz. One cup of cornstarch weighs 128g, so 0.31 cups is 0.31 × 128 = 39.68g (1.40 oz). This conversion is specific to cornstarch because each ingredient has a different density.
Formula and Step-by-Step
- Start with 0.31 cups of cornstarch
- 1 cup of cornstarch = 128g
- 0.31 × 128 = 39.68g
- Convert grams to ounces: 39.68 ÷ 28.3495 = 1.40 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
For the most consistent results, weigh cornstarch on a kitchen scale. Volume measurements can vary by 20-30% depending on how the flour is scooped.
Cornstarch at Different Amounts
How cornstarch scales across common cups measurements. Your amount (0.31 cups) is highlighted.
For reference, 0.31 cups of cornstarch (39.68g) is close in weight to a golf ball (46g).
Other Amounts of Cornstarch
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 1.13 oz | 1.19 oz | 1.36 oz |
| 0.31 cups | 1.40 oz | 1.48 oz | 1.68 oz |
| 0.33 cups | 1.49 oz | 1.57 oz | 1.79 oz |
| 0.5 cups | 2.26 oz | 2.39 oz | 2.71 oz |
| 0.75 cups | 3.39 oz | 3.58 oz | 4.07 oz |
| 1 cup | 4.52 oz | 4.77 oz | 5.42 oz |
| 1.5 cups | 6.77 oz | 7.16 oz | 8.13 oz |
| 2 cups | 9.03 oz | 9.54 oz | 10.84 oz |
| 3 cups | 13.55 oz | 14.31 oz | 16.27 oz |
| 4 cups | 18.06 oz | 19.08 oz | 21.69 oz |
| 5 cups | 22.58 oz | 23.86 oz | 27.11 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?
An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.