1 Cup of Cornstarch in Grams
1 cup of cornstarch weighs about 112 grams (3.95 oz).
US cup (236.6 ml). Source: King Arthur Baking Ingredient Weight Chart.
- Tablespoons
- 16 tbsp
- Teaspoons
- 48 tsp
- Milliliters
- 236.6 ml
- Grams
- 112 g
- Ounces (weight)
- 3.951 oz
Based on about 112 g per US cup of cornstarch. Real weights vary with brand and how the cup is filled.
Cornstarch: cups to grams chart
| Cups | Grams | Ounces | Milliliters |
|---|---|---|---|
| 1/8 cup | 14 g | 0.49 oz | 30 ml |
| 1/4 cup | 28 g | 0.99 oz | 59 ml |
| 1/3 cup | 37 g | 1.32 oz | 79 ml |
| 1/2 cup | 56 g | 1.98 oz | 118 ml |
| 2/3 cup | 75 g | 2.63 oz | 158 ml |
| 3/4 cup | 84 g | 2.96 oz | 177 ml |
| 1 cup | 112 g | 3.95 oz | 237 ml |
| 1 1/2 cups | 168 g | 5.93 oz | 355 ml |
| 2 cups | 224 g | 7.9 oz | 473 ml |
| 3 cups | 336 g | 11.9 oz | 710 ml |
| 4 cups | 448 g | 15.8 oz | 946 ml |
Cornstarch: grams to cups
Many recipes outside the US list weights. Divide the grams by 112 (the typical weight of one cup) to get cups. A tablespoon is 1/16 cup, about 7 g, and a teaspoon is 1/3 tablespoon, about 2.3 g.
| Grams | Cups (decimal) | Cups (nearest 1/8) | Tablespoons |
|---|---|---|---|
| 50 g | 0.446 | 1/2 | 7.143 |
| 100 g | 0.893 | 7/8 | 14.29 |
| 125 g | 1.116 | 1 1/8 | 17.86 |
| 200 g | 1.786 | 1 3/4 | 28.57 |
| 250 g | 2.232 | 2 1/4 | 35.71 |
| 300 g | 2.679 | 2 5/8 | 42.86 |
| 500 g | 4.464 | 4 1/2 | 71.43 |
How cornstarch compares with similar ingredients
Cup weights of nearby ingredients on this site, so you can see whether a swap changes the amount you weigh out. The last column is the difference from cornstarch per cup.
| Ingredient | 1 cup | Difference |
|---|---|---|
| cornstarch (this page) | 112 g | — |
| all-purpose flour | 120 g | +8 g |
| bread flour | 120 g | +8 g |
| cake flour | 120 g | +8 g |
| whole wheat flour | 113 g | +1 g |
Measuring cornstarch by cup and by weight
Cornstarch is about 112 g per cup, but you rarely measure it by the cup: a tablespoon, roughly 7 g, thickens a cup of liquid into a light sauce. It packs down when stored, so a heaped tablespoon can easily be double a level one. Mix it into cold liquid before heating so it does not form lumps. In the UK, "cornflour" is the same thing.
Need a different ingredient? Browse all cups-to-grams conversions, or use the plain cooking converter and cups to ml converter for water-like liquids.
Helpful answers
Frequently asked questions
- How many grams are in 1 cup of cornstarch?
- About 112 g (3.95 oz). This is a typical value from the King Arthur Baking Ingredient Weight Chart; your own cup may differ by several grams depending on brand and how it is measured.
- How many grams are in 1/2 cup of cornstarch?
- About 56 g (1.98 oz). For 1/4 cup it is about 28 g, and for 1/3 cup about 37 g.
- How many grams are in 1 tablespoon of cornstarch?
- About 7 g, since a US cup holds 16 tablespoons. A teaspoon is roughly 2.3 g.
- How many cups is 100 grams of cornstarch?
- About 0.893 cup, using 112 g per cup. Written the way recipes do, 250 g is about 2 1/4 cups and 500 g is about 4 1/2 cups.
- Is 1 cup of cornstarch heavier than 1 cup of all-purpose flour?
- No. At the typical values on this site, 1 cup of cornstarch is 112 g and 1 cup of all-purpose flour is 120 g, a difference of 8 g per cup.
- How many grams are in a tablespoon of cornstarch?
- About 7 g, which is 1/16 of the 112 g cup. A level tablespoon is enough to thicken about a cup of liquid.