Cornstarch: weights & conversions
A US cup of cornstarch weighs about 128 g. 100 g is 381 calories and 0.26 g of protein.
Also written as: corn starch, cornflour.
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1 cup of cornstarch is about 128 grams.
Cups to grams
What each measure of cornstarch weighs, from the cup weight above.
| Volume | Grams | Ounces |
|---|---|---|
| 1 cup | 128 g | 4.52 oz |
| 3/4 cup | 96 g | |
| 2/3 cup | 85.3 g | |
| 1/2 cup | 64 g | |
| 1/3 cup | 42.7 g | |
| 1/4 cup | 32 g | |
| 1 tablespoon | 8 g | |
| 1 teaspoon | 2.67 g |
Ounces and pounds
The weights an older recipe card is most likely to use.
| Weight | Grams | Ounces |
|---|---|---|
| 1 oz | 28.3 g | |
| 4 oz (1/4 lb) | 113 g | |
| 8 oz (1/2 lb) | 227 g | |
| 1 lb | 454 g | |
| 100 g | 100 g |
Nutrition
Per 100 g of edible portion, transcribed from USDA reference data, and scaled to the measures above.
| Measure | Calories | Protein | Fat | Carbs | Fiber | Sodium |
|---|---|---|---|---|---|---|
| Per 100 g (100 g) | 381 | 0.26 g | 0.05 g | 91.3 g | 0.9 g | 9 mg |
| Per cup (128 g) | 488 | 0.33 g | 0.06 g | 117 g | 1.15 g | 12 mg |
| Per tablespoon (8 g) | 30 | 0.02 g | 0 g | 7.3 g | 0.07 g | 1 mg |
| Per 4 oz (113 g) | 432 | 0.29 g | 0.06 g | 104 g | 1.02 g | 10 mg |
Using cornstarch in a recipe?
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Cook with cornstarchSunday Pot RoastRead this free recipe →If you have run out
- Two tablespoons of all-purpose flour for every tablespoon of cornstarch, whisked into cold liquid first.
Free recipes that use cornstarch
From our starter library — free to read, free to save into your own cookbook.
Common questions
- How many grams are in a cup of cornstarch?
- One US cup of cornstarch weighs about 128 g (4.52 oz). A tablespoon is about 8 g and a teaspoon about 2.67 g.
- How many cups is 100 g of cornstarch?
- 100 g of cornstarch is about 0.78 cups — near enough to 3/4 of a cup in a measuring cup.
- How many calories are in cornstarch?
- Cornstarch has about 381 calories per 100 g, which works out to roughly 488 calories a cup.
- What can I use instead of cornstarch?
- Two tablespoons of all-purpose flour for every tablespoon of cornstarch, whisked into cold liquid first.