How Much Is 8 Ounces of Cornstarch in Cups?
8 ounces of cornstarch equals 1.77 cups. That's 226.80g, and Cornstarch has a density of 128g per cup. Because ounces measure weight and cups measure volume, the result depends on the ingredient's density.
Formula and Step-by-Step
- Start with 8 ounces of cornstarch
- Convert ounces to grams: 8 × 28.35 = 226.80g
- 1 cup of cornstarch = 128g
- 226.80g ÷ 128g/cup = 1.77 cups
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 ounces measurements. Your amount (8 ounces) is highlighted.
Other Amounts of Cornstarch
| Ounces | US Cups | Metric Cup | Imperial Cup |
|---|---|---|---|
| 1 ounce | 0.22 cups | 0.21 cups | 0.18 cups |
| 2 ounces | 0.44 cups | 0.42 cups | 0.37 cups |
| 3 ounces | 0.66 cups | 0.63 cups | 0.55 cups |
| 4 ounces | 0.89 cups | 0.84 cups | 0.74 cups |
| 5 ounces | 1.11 cups | 1.05 cups | 0.92 cups |
| 6 ounces | 1.33 cups | 1.26 cups | 1.11 cups |
| 8 ounces | 1.77 cups | 1.68 cups | 1.48 cups |
| 10 ounces | 2.21 cups | 2.10 cups | 1.84 cups |
| 12 ounces | 2.66 cups | 2.52 cups | 2.21 cups |
| 16 ounces | 3.54 cups | 3.35 cups | 2.95 cups |
Understanding the Units
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.
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.