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Cornstarch — Grams in Cups
1 gram of cornstarch equals 0.00834 cups*
Density-based conversion — ingredient densities cross-checked against the FAO/INFOODS density database and USDA FoodData Central. The exact weight varies slightly with brand and packing. How we calculate · Reviewed August 21, 2026.
About cornstarch measurements
Cornstarch is a superfine powder that settles tightly in the box, giving a reference density around 0.51 g/ml (about 120 g per cup). It compacts under its own weight, so digging a cup from a fresh box packs in more than gently spooning it — fluff or sift it first for an honest measure.
Grams of cornstarch equivalent in cups?
FAQs on cornstarch weight to volume conversion
1 gram of cornstarch equals how many cups?
1 gram of cornstarch is equivalent 0.00834 cups.
How much is 0.00834 cups of cornstarch in grams?
0.00834 cups of cornstarch equals 1 gram.
Cornstarch: Grams to cups — common amounts
| Grams | Cups |
|---|---|
| 4 grams | 0.0333 cups |
| 5 grams | 0.0417 cups |
| 6 grams | 0.05 cups |
| 8 grams | 0.0667 cups |
| 9 grams | 0.075 cups |
| 10 grams | 0.0834 cups |
| 15 grams | 0.125 cups |
| 20 grams | 0.167 cups |
| 30 grams | 0.25 cups |
| 50 grams | 0.417 cups |
References:
Weight to Volume Conversions - Recipes
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.