Baking Soda — Grams & Cups Converter
1 cup of baking soda (also called bicarbonate of soda, bicarb) weighs about 230 g. So 100 g ≈ 3/8 cup, 200 g ≈ 7/8 cup, and 300 g ≈ 1 1/3 cups. Convert any amount between grams, cups, ounces, tablespoons and millilitres with the calculator below.
💡 Tip: Baking soda is about 4 times stronger than baking powder and needs an acidic ingredient in the recipe to activate and rise.
Cups to grams chart for baking soda
| Cups | Grams | Ounces |
|---|---|---|
| 1/4 | 57.5 | 2.03 |
| 1/3 | 76.7 | 2.7 |
| 1/2 | 115 | 4.06 |
| 2/3 | 153 | 5.41 |
| 3/4 | 173 | 6.08 |
| 1 | 230 | 8.11 |
| 1 1/2 | 345 | 12.2 |
| 2 | 460 | 16.2 |
| 3 | 690 | 24.3 |
Grams to cups chart for baking soda
| Grams | Cups | Ounces |
|---|---|---|
| 10 | 0 | 0.35 |
| 25 | 1/8 | 0.88 |
| 50 | 1/4 | 1.76 |
| 75 | 1/3 | 2.65 |
| 100 | 3/8 | 3.53 |
| 125 | 1/2 | 4.41 |
| 150 | 2/3 | 5.29 |
| 200 | 7/8 | 7.05 |
| 250 | 1 1/8 | 8.82 |
| 300 | 1 1/3 | 10.6 |
| 500 | 2 1/8 | 17.6 |
Spoon reference: 1 tablespoon ≈ 14.4 g, 1 teaspoon ≈ 4.79 g.
Baking soda (bicarbonate of soda)
Baking soda is pure sodium bicarbonate and about 3 to 4 times stronger than baking powder, so recipes use very little — a teaspoon weighs about 4.8 g, and a typical amount is around ¼ teaspoon per cup of flour. It needs an acidic partner (buttermilk, yogurt, brown sugar, cocoa) to activate.
If your recipe uses the British name bicarbonate of soda, or just bicarb, it's exactly the same ingredient.
Frequently asked questions
- How many grams is 1 cup of baking soda?
- 1 US cup of baking soda weighs about 230 grams (8.11 ounces).
- How many cups is 100g of baking soda?
- 100 grams of baking soda is about 3/8 cup.
- How many cups is 200g of baking soda?
- 200 grams of baking soda is about 7/8 cup.
- How many cups is 250g of baking soda?
- 250 grams of baking soda is about 1 1/8 cups.
- How many cups is 300g of baking soda?
- 300 grams of baking soda is about 1 1/3 cups.
- How many cups is 500g of baking soda?
- 500 grams of baking soda is about 2 1/8 cups.
- How many grams is ½ cup of baking soda?
- Half a US cup of baking soda is about 115 grams.
- How much does 1 cup of baking soda weigh?
- 1 cup of baking soda weighs about 230 grams, or roughly 8.11 ounces.
- How many grams in a tablespoon of baking soda?
- About 14.4 grams per tablespoon (and roughly 4.79 g per teaspoon).
- Why do my numbers differ slightly?
- Density changes with how the baking soda is packed, sifted or measured. For precise baking, weigh with a scale instead of using cups.
- How many grams is a teaspoon of baking soda?
- About 4.8 g per teaspoon.
- Is baking soda the same as bicarbonate of soda?
- Yes, identical — bicarbonate of soda (or bicarb) is the British name for baking soda.
- Can I substitute baking soda for baking powder?
- Only with adjustments; soda is far stronger and needs acid. Replace 1 teaspoon of baking powder with ¼ teaspoon baking soda plus ½ teaspoon cream of tartar.
- How much baking soda per cup of flour?
- About ¼ teaspoon per cup, paired with an acidic ingredient like buttermilk or yogurt.
- How many cups is 150g of baking soda?
- About ⅔ cup of baking soda.