How Much Is 256 Grams of Cornstarch in Cups?
256 grams of cornstarch equals 2.00 cups. Cornstarch has a density of 128g per cup. Because grams measure weight and cups measure volume, the result depends on the ingredient's density.
Formula and Step-by-Step
- Start with 256 grams of cornstarch
- 1 cup of cornstarch = 128g
- 256g ÷ 128g/cup = 2 cups
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Different flour types have very different weights per cup. Always check the specific flour your recipe calls for rather than using a generic "flour" conversion.
Cornstarch at Different Amounts
How cornstarch scales across common grams measurements. Your amount (256 grams) is highlighted.
Other Amounts of Cornstarch
| Grams | US Cups | Metric Cup | Imperial Cup |
|---|---|---|---|
| 5 grams | 0.04 cups | 0.04 cups | 0.03 cups |
| 10 grams | 0.08 cups | 0.07 cups | 0.07 cups |
| 25 grams | 0.20 cups | 0.18 cups | 0.16 cups |
| 50 grams | 0.39 cups | 0.37 cups | 0.33 cups |
| 75 grams | 0.59 cups | 0.55 cups | 0.49 cups |
| 100 grams | 0.78 cups | 0.74 cups | 0.65 cups |
| 150 grams | 1.17 cups | 1.11 cups | 0.98 cups |
| 200 grams | 1.56 cups | 1.48 cups | 1.30 cups |
| 250 grams | 1.95 cups | 1.85 cups | 1.63 cups |
| 256 grams | 2.00 cups | 1.89 cups | 1.67 cups |
| 500 grams | 3.91 cups | 3.70 cups | 3.25 cups |
Understanding the Units
What is a Gram?
A gram (g) is a metric unit of mass equal to 1/1000 of a kilogram. It is the standard weight measurement for precise baking worldwide. Professional bakers prefer grams because they are more accurate than volume measurements.
What is a Cup?
There are three cup standards used worldwide. The US cup (236.588 ml) is used in American recipes. The metric cup (250 ml) is standard in Australia, New Zealand, and some parts of Asia. The imperial cup (284.131 ml) appears in older British and Canadian recipes. A metric cup holds about 5.7% more than a US cup, while an imperial cup holds about 20% more. Using the wrong standard can noticeably affect a recipe.