How Much Is 138 Grams of Baking Soda in Tablespoons?
138 grams of baking soda equals 10.04 tbsp. Baking soda has a density of 220g per cup. Because grams measure weight and tablespoons measure volume, the result depends on the ingredient's density.
Formula and Step-by-Step
- Start with 138 grams of baking soda
- 1 cup of baking soda = 220g
- 138g ÷ 220g/cup = 0.63 cups × 16 = 10.04 tablespoons
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Baking soda can clump or settle during storage. Stir or sift before measuring by volume for consistent results.
Baking Soda at Different Amounts
How baking soda scales across common grams measurements. Your amount (138 grams) is highlighted.
Other Amounts of Baking Soda
| Grams | US Tablespoons | Metric Tablespoon | Australian Tablespoon |
|---|---|---|---|
| 5 grams | 0.36 tbsp | 0.36 tbsp | 0.27 tbsp |
| 10 grams | 0.73 tbsp | 0.72 tbsp | 0.54 tbsp |
| 25 grams | 1.82 tbsp | 1.79 tbsp | 1.34 tbsp |
| 50 grams | 3.64 tbsp | 3.58 tbsp | 2.69 tbsp |
| 75 grams | 5.45 tbsp | 5.38 tbsp | 4.03 tbsp |
| 100 grams | 7.27 tbsp | 7.17 tbsp | 5.38 tbsp |
| 138 grams | 10.04 tbsp | 9.89 tbsp | 7.42 tbsp |
| 150 grams | 10.91 tbsp | 10.75 tbsp | 8.07 tbsp |
| 200 grams | 14.55 tbsp | 14.34 tbsp | 10.75 tbsp |
| 250 grams | 18.18 tbsp | 17.92 tbsp | 13.44 tbsp |
| 500 grams | 36.36 tbsp | 35.85 tbsp | 26.89 tbsp |
Understanding the Units
What is a Gram?
Weighing ingredients in grams eliminates the variability of volume measurements. A cup of flour can weigh anywhere from 120g to 160g depending on how it was scooped, but 120g of flour is always 120g of flour.
What is a Tablespoon?
A tablespoon is roughly the volume of a large soup spoon. In precise terms, 1 US tablespoon equals 14.787 ml, which is very close to the 15 ml metric standard used in most of the world. Three teaspoons make one tablespoon.