How Much Is 21.43 Tablespoons of Baking Soda in Ounces?
21.43 tablespoons of baking soda weighs 10.39 oz. This is based on baking soda having a density of 220g 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 21.43 tablespoons.
Formula and Step-by-Step
- Start with 21.43 tablespoons of baking soda
- 1 tablespoon of baking soda = 13.75g
- 21.43 × 13.75 = 294.66g
- Convert grams to ounces: 294.66 ÷ 28.3495 = 10.39 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Leavener measurements are critical because even small differences affect rise and texture. When possible, weigh baking soda rather than relying on volume.
Baking Soda at Different Amounts
How baking soda scales across common tablespoons measurements. Your amount (21.43 tablespoons) is highlighted.
For reference, 21.43 tablespoons of baking soda (294.66g) is close in weight to a can of soup (305g).
Other Amounts of Baking Soda
| Tablespoons | US Ounces | Metric Tablespoon | Australian Tablespoon |
|---|---|---|---|
| 1 tablespoon | 0.49 oz | 0.49 oz | 0.66 oz |
| 2 tablespoons | 0.97 oz | 0.98 oz | 1.31 oz |
| 3 tablespoons | 1.46 oz | 1.48 oz | 1.97 oz |
| 4 tablespoons | 1.94 oz | 1.97 oz | 2.62 oz |
| 5 tablespoons | 2.43 oz | 2.46 oz | 3.28 oz |
| 6 tablespoons | 2.91 oz | 2.95 oz | 3.94 oz |
| 8 tablespoons | 3.88 oz | 3.94 oz | 5.25 oz |
| 10 tablespoons | 4.85 oz | 4.92 oz | 6.56 oz |
| 12 tablespoons | 5.82 oz | 5.90 oz | 7.87 oz |
| 16 tablespoons | 7.76 oz | 7.87 oz | 10.50 oz |
| 21.43 tablespoons | 10.39 oz | 10.54 oz | 14.06 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.