How many grams is half a teaspoon of baking soda?
½ teaspoon of baking soda ≈ 2.29 g
One teaspoon of baking soda weighs about 4.58 grams and one tablespoon is about 13.75 grams, so half a teaspoon comes out to roughly 2.29 grams. Baking soda is denser than baking powder — one level teaspoon is about 4.6 grams.
Small spoon amounts are where weighing has the biggest payoff: tiny errors compound in baking. If your scale reads in 1-gram steps you can measure baking soda directly. (For reference, one US cup is 220 g.)
Substitutions Ok
Details →
Baking soda conversion chart
| Amount | Grams | Ounces |
|---|---|---|
| ⅛ tsp | 0.573 g | 0.02 oz |
| ¼ tsp | 1.15 g | 0.04 oz |
| ½ tsp | 2.29 g | 0.081 oz |
| ¾ tsp | 3.44 g | 0.121 oz |
| 1 tsp | 4.58 g | 0.162 oz |
| 1 tbsp | 13.75 g | 0.485 oz |
| 2 tbsp | 27.5 g | 0.97 oz |
| ¼ cup | 55 g | 1.94 oz |
Other baking soda conversions
¼ tsp to grams1 tsp to grams2 tsp to grams½ tbsp to grams1 tbsp to grams2 tbsp to grams3 tbsp to grams
* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.