Cups to Grams: Cornstarch

One US cup of cornstarch weighs 112 grams. Every other measure is below, in both directions.

1 cup of cornstarch

112 g

≈ 3.95 oz

Data & method: Density from the King Arthur Baking ingredient weight chart. Every number is checked by an automated test against its source. How we calculate →

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Preset to cornstarch — change the amount, units or ingredient to convert anything else.

Amount From To Ingredient

Result

112 g

Cornstarch: 112 g per cup

Recipe now in grams? Next: scale it to your batch →

Cornstarch — cups to grams chart

Cornstarch	Grams	Ounces
¼ cup	28 g	0.99 oz
⅓ cup	37 g	1.32 oz
½ cup	56 g	1.98 oz
⅔ cup	75 g	2.63 oz
¾ cup	84 g	2.96 oz
1 cup	112 g	3.95 oz
1½ cups	168 g	5.93 oz
2 cups	224 g	7.9 oz
3 cups	336 g	11.85 oz
1 tablespoon	7 g	0.25 oz
1 teaspoon	2.3 g	0.08 oz

Grams to cups: cornstarch

Working the other way — a recipe in grams, and cups are what you have in the drawer:

Grams of cornstarch	Cups (approx.)
50 g	0.45 cups
100 g	⅞ cups
125 g	1⅛ cups
200 g	1¾ cups
250 g	2¼ cups
500 g	4½ cups

Other flours & dry bases

See the full CrumbCalc ingredient weight chart →

Frequently Asked Questions

How many grams is 1 cup of cornstarch?

One US cup of cornstarch weighs 112 grams (about 3.95 ounces). This follows the King Arthur Baking ingredient weight chart, the reference most US test kitchens use.

How many grams is a tablespoon of cornstarch?

A tablespoon of cornstarch is about 7 grams, since one cup holds 16 tablespoons. A teaspoon is about 2.3 grams.

How many cups is 250 g of cornstarch?

250 grams of cornstarch is about 2¼ cups (250 ÷ 112). Weighing is more reliable than measuring by cup, because how you fill the cup changes the amount.