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The Cookio

Cornstarch Cups to Grams

How many grams in a cup of Cornstarch? Exactly 128g.

Cornstarch thickener
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128 grams

1 cup Cornstarch = 128 g · 4.52 oz

Quick:

How many grams in a cup of Cornstarch?

One cup of Cornstarch weighs exactly 128 grams (4.52 oz). One tablespoon is 8 g and one teaspoon is 2.7 g.

💡 Measuring tip: Sift into cup and level for accuracy. Settles and packs easily.

Cornstarch conversion chart

Cups Grams Ounces Tbsp
⅛ cup 16 g 0.56 oz 2
¼ cup 32 g 1.13 oz 4
⅓ cup 42.7 g 1.51 oz 5.3
½ cup 64 g 2.26 oz 8
⅔ cup 85.3 g 3.01 oz 10.7
¾ cup 96 g 3.39 oz 12
1 cup 128 g 4.52 oz 16
1½ cups 192 g 6.77 oz 24
2 cups 256 g 9.03 oz 32

About Cornstarch

Pure starch extracted from corn for thickening

sauces gravies puddings crispy coatings stir-fry

Frequently asked questions

How many grams are in a cup of Cornstarch?

One cup of Cornstarch weighs exactly 128 grams. This is the accurate ingredient-specific weight, not a generic water-based figure.

How many tablespoons of Cornstarch in a cup?

There are 16 tablespoons in one cup of Cornstarch. Each tablespoon weighs approximately 8.0 grams.

How many teaspoons of Cornstarch in a cup?

There are 48 teaspoons in one cup of Cornstarch. Each teaspoon weighs approximately 2.7 grams.

Why doesn't 1 cup of Cornstarch equal 240 grams?

240g/cup is the density of water. Cornstarch has a different density. Sift into cup and level for accuracy. Settles and packs easily.

Need the reverse?

Convert grams of Cornstarch back to cups

Grams → Cups →

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