Cornflour: cups to grams
1 cup of cornflour (cornstarch) weighs
128g
In a 250ml metric cup (Australia, NZ): 135g
UK cornflour is the fine white starch Americans call cornstarch. It isn't American corn flour, which is finely ground cornmeal.
Cups
| Amount | US cup | Metric cup |
|---|---|---|
| ¼ cup | 32g | 34g |
| ⅓ cup | 43g | 45g |
| ½ cup | 64g | 68g |
| ⅔ cup | 85g | 90g |
| ¾ cup | 96g | 101g |
| 1 cup | 128g | 135g |
| 2 cups | 256g | 271g |
A US cup is 237ml. Use the metric column for Australian and New Zealand recipes.
Spoons
| Amount | Weight | Australian tbsp (20ml) |
|---|---|---|
| 1 tablespoon | 8g | 11g |
| 1 teaspoon | 2.7g |
Quick answers
Where these numbers come from
USDA FoodData Central, SR Legacy, food 20027: “Cornstarch”. USDA lists these household measures for it:
- 1 cup = 128g
Fractions of a cup are the cup weight scaled down. The tablespoon figure is the cup weight divided by 16, since USDA doesn't list a tablespoon for this ingredient. The teaspoon is a third of the tablespoon. Metric-cup figures assume a 250ml cup, and Australian tablespoons hold 20ml. Weights under 10g are rounded to 0.1g, everything else to the nearest gram. Full source list.
Convert another amount
Open the converter with cornflour selected.