How Much Is 12 Tablespoons of Cornstarch in Ounces?
12 tablespoons of cornstarch weighs 3.39 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 12 tablespoons.
Formula and Step-by-Step
- Start with 12 tablespoons of cornstarch
- 1 tablespoon of cornstarch = 8g
- 12 × 8 = 96g
- Convert grams to ounces: 96 ÷ 28.3495 = 3.39 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
For the most consistent results, weigh cornstarch on a kitchen scale. Volume measurements can vary by 20-30% depending on how the flour is scooped.
Cornstarch at Different Amounts
How cornstarch scales across common tablespoons measurements. Your amount (12 tablespoons) is highlighted.
For reference, 12 tablespoons of cornstarch (96g) is close in weight to a deck of playing cards (94g).
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?
An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.