See all Cornstarch conversions
Open the full ingredient guide for density notes, common cup weights, and the most-used conversion paths.
Cornstarch ingredient guide →1 gram of cornstarch = 0.13 tablespoons. That's based on a 128 g per cup baseline. Cornstarch is also called corn flour in some recipes. Because cornstarch can shift with brand and measuring style, weighing is usually more accurate than measuring by volume.
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We have 3 tested substitutions with exact ratios.
Find a substitute →Open the full ingredient guide for density notes, common cup weights, and the most-used conversion paths.
Cornstarch ingredient guide →Start with Arrowroot Powder using 1:1, then see the full substitute hub for more tested options.
Open Cornstarch substitutions →Jump straight to the recipe-specific page for ratios and adjustment notes in cookies.
Cornstarch substitute for cookies →| grams | tablespoons |
|---|---|
| 10 grams | 1.3 tablespoons |
| 25 grams | 3.1 tablespoons |
| 50 grams | 6.3 tablespoons |
| 100 grams | 12.5 tablespoons |
| 150 grams | 18.8 tablespoons |
| 200 grams | 25.0 tablespoons |
| 250 grams | 31.3 tablespoons |
| 500 grams | 62.6 tablespoons |
Ingredient-specific, density-based conversions for baking
Cornstarch can vary by brand and measuring style.
Cornstarch can behave differently by brand and handling. Converting cornstarch with a consistent baseline gives you a more dependable starting point for scaling recipes.
Pure starch extracted from corn. Primary use as a thickener and tenderiser. Use this conversion as a practical starting point for scaling recipes with cornstarch.
1 gram of cornstarch is 0.13 tablespoons using a 128 g per cup baseline.
Cornstarch can vary by brand and measuring style. In practice, brand and measuring style can shift results between kitchens.
Usually yes. Weight-based measuring reduces shifts from brand and measuring style, so your results are more repeatable.
For chemical leavening: small weight changes alter rise and browning.
For quick breads: over-leavening can cause collapse after oven spring.
For cookies: balance leavening with acid source for predictable spread.
Baseline on this page: 1 cup cornstarch = 128g. Real-world range can shift by about 6% because fine powders and leaveners settle during storage, changing cup density.
Example for 2 cups: baseline 256g, common range 240g-272g. If your bake is texture-sensitive, start with the lower bound and adjust after a test batch.