Baking soda — cups to grams chart
| Baking soda | Grams | Ounces |
|---|---|---|
| ¼ cup | 58 g | 2.03 oz |
| ⅓ cup | 77 g | 2.7 oz |
| ½ cup | 115 g | 4.06 oz |
| ⅔ cup | 153 g | 5.41 oz |
| ¾ cup | 173 g | 6.08 oz |
| 1 cup | 230 g | 8.11 oz |
| 1½ cups | 345 g | 12.17 oz |
| 2 cups | 460 g | 16.23 oz |
| 3 cups | 690 g | 24.34 oz |
| 1 tablespoon | 14 g | 0.51 oz |
| 1 teaspoon | 4.8 g | 0.17 oz |
Grams to cups: baking soda
Working the other way — a recipe in grams, and cups are what you have in the drawer:
| Grams of baking soda | Cups (approx.) |
|---|---|
| 50 g | ¼ cups |
| 100 g | 0.43 cups |
| 125 g | 0.54 cups |
| 200 g | ⅞ cups |
| 250 g | 1⅛ cups |
| 500 g | 2⅙ cups |
Where this number comes from
Most of our weights are the King Arthur Baking chart figure, unchanged. This one is not, and it is worth saying why: Measured kitchen references cluster at 4.4–5.0 g/tsp. King Arthur's chart implies 6 g/tsp because it rounds ½ tsp = 1/10 oz (2.83 g) up to 3 g, and that rounding doubles.
We would rather publish the number your scale will agree with and show our reasoning than quote a familiar chart that rounds the physics away. Every value we don't depart on is locked to the chart by a test, so this list stays short and deliberate — you can read all of them on the methodology page.
Why the measuring method matters
The 230 g figure assumes baking soda measured 4.8 g per tsp. Volume measurement is sensitive to how the cup is filled — packing or scooping changes how much fits, which is why the same "1 cup" can vary noticeably between two bakers. A scale removes the variable entirely, and it is the reason professional recipes are written in weight.