How Much Is 1.5 Cups of Cornstarch in Ounces?
1.5 cups of cornstarch weighs 6.77 oz. This is based on cornstarch having a density of 128g 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 1.5 cups.
Formula and Step-by-Step
- Start with 1.5 cups of cornstarch
- 1 cup of cornstarch = 128g
- 1.5 × 128 = 192g
- Convert grams to ounces: 192 ÷ 28.3495 = 6.77 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Humidity affects cornstarch weight. In humid conditions, flour absorbs moisture and weighs more per cup. Store it in an airtight container for consistent results.
Cornstarch at Different Amounts
How cornstarch scales across common cups measurements. Your amount (1.5 cups) is highlighted.
For reference, 1.5 cups of cornstarch (192g) is close in weight to a smartphone (175g).
Other Amounts of Cornstarch
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 1.13 oz | 1.19 oz | 1.36 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?
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?
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.