100 Grams of Cornstarch to Cups

100 grams of cornstarch converts to cups using that ingredient's own density, not a generic grams-to-cups shortcut.

Quick Answer

100 grams of cornstarch equals:

¾
approximate cup fraction
0.78
decimal cups
128g
per cup

Cornstarch is powdery and compacts easily, so spoon it into the cup and level it.

Grams to Cups Converter

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Cornstarch(Dry Goods)
128g per cup
grams

Dedicated conversion guides use the default US customary cup.

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Why This Is Ingredient-Specific

Grams measure weight, while cups measure volume. That means 100 grams of cornstarch does not fill the same cup volume as 100 grams of flour, sugar, butter, or water.

This page uses 128 grams per cup for cornstarch. For a broader comparison, see the 100 grams to cups chart across common ingredients.

More Cornstarch Conversions

Frequently Asked Questions

100 grams of cornstarch is about 0.78 cups. In kitchen measures, that is 13 tablespoons.

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