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How many grams is half a cup of cornstarch?

½ cup of cornstarch ≈ 60 g

Because one US cup of cornstarch weighs about 120 grams, half a cup of it is roughly 60 grams. Cornstarch is fine and powdery — stir it before measuring to break up any lumps.

Recipes that list cornstarch in cups assume an average density. The figure above is a sensible typical value; if your recipe is sensitive, weigh on a kitchen scale — see our methodology.

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Cornstarch conversion chart

Cornstarch — cups to grams
Cups	Grams	Ounces	Tablespoons
⅛ cup	15 g	0.529 oz	2
¼ cup	30 g	1.06 oz	4
⅓ cup	40 g	1.41 oz	5.33
½ cup	60 g	2.12 oz	8
⅔ cup	80 g	2.82 oz	10.67
¾ cup	90 g	3.17 oz	12
1 cup	120 g	4.23 oz	16
1¼ cups	150 g	5.29 oz	20
1½ cups	180 g	6.35 oz	24
2 cups	240 g	8.47 oz	32
3 cups	360 g	12.7 oz	48

Other cornstarch conversions

100 g to cups 200 g to cups 250 g to cups 500 g to cups ¼ cup to grams 1 cup to grams 2 cups to grams

← Cornstarch converter All ingredients Cups to grams chart

* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.