How Much Is 3 Tablespoons of Cornstarch in Ounces?
3 tablespoons of cornstarch weighs 0.85 oz. This is based on cornstarch having a density of 128g per cup. Because tablespoons measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 3 tablespoons.
Formula and Step-by-Step
- Start with 3 tablespoons of cornstarch
- 1 tablespoon of cornstarch = 8g
- 3 × 8 = 24g
- Convert grams to ounces: 24 ÷ 28.3495 = 0.85 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Humidity affects cornstarch weight. In humid conditions, flour absorbs moisture and weighs more per cup. Store it in an airtight container for consistent results.
Cornstarch at Different Amounts
How cornstarch scales across common tablespoons measurements. Your amount (3 tablespoons) is highlighted.
For reference, 3 tablespoons of cornstarch (24g) is close in weight to an AA battery (23g).
Other Amounts of Cornstarch
| Tablespoons | US Ounces | Metric Tablespoon | Australian Tablespoon |
|---|---|---|---|
| 1 tablespoon | 0.28 oz | 0.29 oz | 0.38 oz |
| 2 tablespoons | 0.56 oz | 0.57 oz | 0.76 oz |
| 3 tablespoons | 0.85 oz | 0.86 oz | 1.15 oz |
| 4 tablespoons | 1.13 oz | 1.15 oz | 1.53 oz |
| 5 tablespoons | 1.41 oz | 1.43 oz | 1.91 oz |
| 6 tablespoons | 1.69 oz | 1.72 oz | 2.29 oz |
| 8 tablespoons | 2.26 oz | 2.29 oz | 3.05 oz |
| 10 tablespoons | 2.82 oz | 2.86 oz | 3.82 oz |
| 12 tablespoons | 3.39 oz | 3.44 oz | 4.58 oz |
| 16 tablespoons | 4.52 oz | 4.58 oz | 6.11 oz |
Understanding the Units
What is a Tablespoon?
Tablespoon sizes differ by country. A US tablespoon is 14.787 ml, close to the 15 ml metric standard used in most countries. An Australian tablespoon is 20 ml, about 35% larger than US. An imperial tablespoon is 17.758 ml. If your recipe comes from Australia, the larger tablespoon size can make a real difference.
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.