Cornstarch: cups to grams
Use the converter to change any amount of cornstarch between cups, grams, ounces and spoons, or jump to the charts below. Weights are for a standard US cup (236.6 ml), spooned and leveled.
Cornstarch: cups to grams
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 14 g | 0.49 oz |
| 1/4 cup | 28 g | 0.99 oz |
| 1/3 cup | 37 g | 1.32 oz |
| 1/2 cup | 56 g | 1.98 oz |
| 2/3 cup | 75 g | 2.63 oz |
| 3/4 cup | 84 g | 2.96 oz |
| 1 cup | 112 g | 3.95 oz |
| 1 1/4 cups | 140 g | 4.94 oz |
| 1 1/2 cups | 168 g | 5.93 oz |
| 2 cups | 224 g | 7.9 oz |
| 2 1/2 cups | 280 g | 9.88 oz |
| 3 cups | 336 g | 11.85 oz |
| 4 cups | 448 g | 15.8 oz |
Cornstarch: grams to cups
| Grams | Cups | How to measure it |
|---|---|---|
| 10 g | 0.09 cups | 1 1/2 tbsp |
| 25 g | 0.22 cups | 3 1/2 tbsp |
| 50 g | 0.45 cups | 1/3 cup + 2 tbsp |
| 75 g | 0.67 cups | 2/3 cup |
| 100 g | 0.89 cups | 3/4 cup + 2 1/2 tbsp |
| 125 g | 1.12 cups | 1 cup + 2 tbsp |
| 150 g | 1.34 cups | 1 1/3 cups |
| 200 g | 1.79 cups | 1 3/4 cups + 1 1/2 tsp |
| 250 g | 2.23 cups | 2 1/4 cups |
| 300 g | 2.68 cups | 2 2/3 cups |
| 400 g | 3.57 cups | 3 1/2 cups + 1 tbsp |
| 500 g | 4.46 cups | 4 1/3 cups + 2 tbsp |
| 750 g | 6.7 cups | 6 2/3 cups |
| 1000 g | 8.93 cups | 8 3/4 cups + 3 tbsp |
Tablespoons and teaspoons of cornstarch
How to measure cornstarch accurately
Spoon flour into the cup and level it with a knife. Scooping straight from the bag packs it down and can add 20–30% more flour.
For the most reliable result, weigh cornstarch on a digital kitchen scale: 112 g for every cup the recipe asks for.
Compare with similar ingredients
| Ingredient | 1 cup | 1/2 cup | 100 g in cups |
|---|---|---|---|
| Cornstarch | 112 g | 56 g | 0.89 |
| All-purpose flour | 120 g | 60 g | 0.83 |
| Bread flour | 120 g | 60 g | 0.83 |
| Cake flour | 120 g | 60 g | 0.83 |
| Self-rising flour | 113 g | 57 g | 0.88 |
| Whole wheat flour | 113 g | 57 g | 0.88 |
| Almond flour | 96 g | 48 g | 1.04 |
| Coconut flour | 128 g | 64 g | 0.78 |
| Rye flour | 106 g | 53 g | 0.94 |
| Cornmeal | 156 g | 78 g | 0.64 |
| Semolina | 163 g | 82 g | 0.61 |
Cornstarch conversion FAQ
How many grams is 1 cup of cornstarch?
1 cup of cornstarch weighs 112 grams (3.95 oz), using a standard US cup of 236.6 ml.
How many grams is 1/2 cup of cornstarch?
1/2 cup of cornstarch is 56 grams.
How many cups is 100 grams of cornstarch?
100 grams of cornstarch is 0.89 cups, which you can measure as 3/4 cup + 2 1/2 tbsp.
How many grams is 1 tablespoon of cornstarch?
1 tablespoon of cornstarch weighs about 7 grams, and 1 teaspoon about 2.3 grams.
Why doesn’t a cup of cornstarch weigh the same as a cup of water?
A cup measures volume, not weight. Water weighs about 237 g per cup, but cornstarch has a different density, so the same cup holds 112 g. That is why weighing gives more reliable results than cups.
Other amounts in grams
Source: King Arthur Baking ingredient weight chart. Last checked September 2026. Weights vary slightly by brand and how the cup is filled.
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