Cornstarch Tablespoons to Ounces
Convert any amount of cornstarch between tablespoons and ounces. 1 tablespoon of cornstarch equals 0.28 oz. Use the calculator for custom amounts, or choose an amount below.
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Popular Recipe Amounts
Common cornstarch measurements found in recipes.
Other Units for Cornstarch
Convert cornstarch from tablespoons to other units. Each link has its own calculator and conversion amounts.
Similar Ingredients
Measuring Tip
Cornstarch is a fine powder that compacts easily. Spoon it into the measuring spoon and level off rather than dipping, which packs in more than intended.
Understanding the Units
What is a Tablespoon?
One tablespoon holds about 15 milliliters. There are 16 tablespoons in a cup and 3 teaspoons in a tablespoon. In baking, tablespoon measurements are used for butter, oil, honey, and other ingredients where a full cup would be too much.
What is an Ounce?
Ounces are commonly used in US recipes for cheese, meat, chocolate, and other ingredients sold by weight. Many kitchen scales offer both gram and ounce readings.
Frequently Asked Questions
1 tablespoon of cornstarch equals 0.28 oz. Choose an amount below for a full breakdown, or enter any quantity in the calculator.
The most accurate way is to weigh cornstarch on a kitchen scale. If you are measuring by volume, sift or whisk the flour first to break up clumps, then spoon it into the measuring spoon and level it off. Do not scoop directly from the bag, which compacts the flour and can increase the weight by 20-30%.
Close, but not exactly. The tablespoons to ounces conversion for cornstarch may vary slightly between brands depending on moisture content and how the ingredient is measured.
Weighing is more consistent than volume measuring. A tablespoon of cornstarch can vary by 10-20% depending on how it's scooped, packed, or leveled. Weighing gives the same result every time, which is especially important in baking where precision affects texture and rise.