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Cornstarch in grams
One cup of cornstarch weighs 128 g, one decilitre 54 g, one tablespoon 8.0 g and one teaspoon 2.7 g. Reverse conversions for 100 g, 250 g and 500 g, plus a recipe scaler.
Volume to grams
| Measure | Grams |
|---|---|
| 1 US cup | 128 g |
| 1 dl (100 ml) | 54 g |
| 1 tablespoon | 8.0 g |
| 1 teaspoon | 2.7 g |
| ½ cup | 64 g |
| 1/3 cup | 43 g |
| ¼ cup | 32 g |
Grams to volume
| Weight | Cups | dl | Tablespoons | Teaspoons |
|---|---|---|---|---|
| 100 g | 0.78 cups | 1.85 dl | 12.5 tbsp | 38 tsp |
| 250 g | 1.95 cups | 4.62 dl | 31.3 tbsp | 94 tsp |
| 500 g | 3.91 cups | 9.24 dl | 62.5 tbsp | 188 tsp |
| 1000 g | 7.81 cups | 18.48 dl | 125.0 tbsp | 375 tsp |
Convert any amount
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About this figure
This weight comes from the King Arthur Baking weight chart. It assumes a level measure filled by the scoop-and-sweep method at room temperature. A heaped spoon, a packed cup or a humid kitchen changes the real weight — the difference is why every serious baking book asks for a scale.
Source: King Arthur Baking — ingredient weight chart · USDA FoodData Central — household measures · checked 2026-09-03
Frequently asked questions
How many grams is 1 dl of cornstarch?
54 g per decilitre (128 g per US cup × 100 ÷ 236.588).
How many grams is 1 cup of cornstarch?
128 g per level US cup, from the King Arthur Baking weight chart.
How many grams is a tablespoon of cornstarch?
About 8.0 g — one sixteenth of the cup weight. Level spoon, not heaped.
Is the cornstarch weight exact?
No — it is a published reference for level measures at room temperature. How you fill the measure and the ingredient's moisture change the real weight.
What it is worth nutritionally
See Cornstarch nutrition: 381 kcal per 100 g, 0.3 g protein, 91.3 g carbs and 0.1 g fat.
Water
237 g per cup · 100 g per dl
Milk (whole)
244 g per cup · 103 g per dl
Heavy cream
238 g per cup · 101 g per dl
Yogurt (plain)
245 g per cup · 104 g per dl
Sour cream
230 g per cup · 97 g per dl
Buttermilk
245 g per cup · 104 g per dl
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