40 grams of cornstarch to cups
40 g of cornstarch is about 0.31 cups, which is roughly 1/3 cup or 5 tablespoons. That comes from 128 g per US cup. Spooned and levelled. Sits between flour and sugar in density.
| Measure | 40 g of cornstarch |
|---|---|
| Cups | 0.31 |
| Kitchen measure | 1/3 cup |
| Tablespoons | 5 |
| Grams per cup used | 128 g |
Cornstarch weighs about 128 g a cup spooned and levelled, though most recipes only ever ask for a tablespoon or two. One level tablespoon is about 8 g, which is the number that matters for thickening sauces and fruit fillings.
Result
0.83 cups
About 7/8 cup of all-purpose flour. 100 g is 3.53 oz by weight.
Assumes spoon-and-level. Scooped flour runs closer to 140 g a cup.
Questions
How many cups is 40 g of cornstarch?
0.31 cups, or about 1/3 cup. That is worked out at 128 g per US cup, and a cup of cornstarch can run 120 to 130 g depending on settling.
How many tablespoons is 40 g of cornstarch?
About 5 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 40 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 40 g of cornstarch is 0.31 cups at 128 g per cup, while the same 40 g of a denser or lighter ingredient fills a different amount of space.
Other amounts of cornstarch
See all cornstarch conversions or 40 g of every other ingredient.