How Much Is 100 Grams of Cornstarch in Cups?
100 grams of cornstarch equals 0.78 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 100 grams of cornstarch
- 1 cup of cornstarch = 128g
- 100g ÷ 128g/cup = 0.78 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 grams measurements. Your amount (100 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 |
| 500 grams | 3.91 cups | 3.70 cups | 3.25 cups |
Understanding the Units
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.
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.