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Cornstarch

Density: 0.507 g/ml • Dry Goods

Convert Cornstarch

Quick Reference — 1 Cornstarch

FromToEquals
1 cupsg120
1 cupstbsp16
1 cupstsp48
1 tbspg7.5
1 tbsptsp3
1 tspg2.5
1 ozg28.35
1 gcups0.008
1 gtbsp0.133

How to measure cornstarch

Cornstarch has a density of 0.507 g/ml. One cup of cornstarch weighs approximately 120 grams. For the most accurate baking, always weigh ingredients on a kitchen scale.

Source: King Arthur Baking Company & USDA National Nutrient Database

Cornstarch Conversion Chart (grams to cups)

GramsCups
50 g0.42 cups
100 g0.83 cups
150 g1.25 cups
200 g1.67 cups
250 g2.08 cups
300 g2.50 cups
400 g3.33 cups
500 g4.17 cups

Approximate values based on density of 0.507 g/ml. Always weigh for precision.

Cornstarch Conversion FAQs

How many grams in 1 cup of cornstarch?+

1 US cup of cornstarch weighs approximately 120 grams. This is based on the ingredient's density of 0.507 g/ml, which is the standard used by professional bakers.

How many grams in 1 tablespoon of cornstarch?+

1 tablespoon of cornstarch weighs approximately 7.5 grams (1/16 of a cup). Use the converter above for any amount.

How many grams in 1 teaspoon of cornstarch?+

1 teaspoon of cornstarch weighs approximately 2.5 grams (1/48 of a cup).

How many cups is 100 grams of cornstarch?+

100 grams of cornstarch is approximately 0.83 cups (about 13 tablespoons). Weighing is always more accurate than measuring by volume.

Is 1 cup of cornstarch the same as 120 grams?+

Yes — in professional baking standards, 1 US cup of cornstarch equals 120 grams. Always use a kitchen scale for the most accurate results, since how ingredients settle in a cup can vary.