How Much Is 0.5 Cups of Cornstarch in Grams?
0.5 cups of cornstarch weighs 64.00 g. This is based on cornstarch having a density of 128g per cup. Because cups measure volume and grams measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 0.5 cups.
Formula and Step-by-Step
- Start with 0.5 cups of cornstarch
- 1 cup of cornstarch = 128g
- 0.5 × 128 = 64g
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Mental Math Shortcut
Half measures: take the weight of 1 cup (128g) and divide by 2.
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 (0.5 cups) is highlighted.
For reference, 0.5 cups of cornstarch (64g) is close in weight to a whole large egg (57g).
Other Amounts of Cornstarch
| Cups | US Grams | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 32.00 g | 33.81 g | 38.43 g |
| 0.33 cups | 42.24 g | 44.63 g | 50.73 g |
| 0.5 cups | 64.00 g | 67.63 g | 76.86 g |
| 0.75 cups | 96.00 g | 101.44 g | 115.29 g |
| 1 cup | 128.00 g | 135.26 g | 153.72 g |
| 1.5 cups | 192.00 g | 202.88 g | 230.58 g |
| 2 cups | 256.00 g | 270.51 g | 307.44 g |
| 3 cups | 384.00 g | 405.77 g | 461.17 g |
| 4 cups | 512.00 g | 541.02 g | 614.89 g |
| 5 cups | 640.00 g | 676.28 g | 768.61 g |
Understanding the Units
What is a Cup?
In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.
What is a Gram?
Grams are the preferred unit in professional kitchens and bakeries because they allow exact recipe scaling. To double a recipe, simply double the gram values. No need to worry about how tightly an ingredient is packed into a cup.