How many grams in a tablespoon of cornstarch?

1 tablespoon of cornstarch weighs about 8 grams (0.28 oz). 1 teaspoon is about 2.7 grams.

This uses 1 cup of cornstarch = 128 g and 16 US tablespoons per cup.

Cornstarch is usually measured by the tablespoon for thickening. A slurry of 1 tablespoon mixed with cold water thickens about a cup of liquid.

Tablespoons to grams

Tablespoons	Grams	Ounces	Teaspoons
1 tbsp	8 g	0.28 oz	3 tsp
2 tbsp	16 g	0.56 oz	6 tsp
3 tbsp	24 g	0.85 oz	9 tsp
4 tbsp	32 g	1.13 oz	12 tsp
5 tbsp	40 g	1.41 oz	15 tsp
6 tbsp	48 g	1.69 oz	18 tsp
8 tbsp	64 g	2.26 oz	24 tsp
10 tbsp	80 g	2.82 oz	30 tsp
12 tbsp	96 g	3.39 oz	36 tsp
16 tbsp	128 g	4.52 oz	48 tsp