Ingredient Weight Converter · leavener
Baking Soda: cups to grams
1 cup of baking soda weighs 220 grams. Use the converter below for any other amount, or check the quick-reference table.
Baking Soda baseline: 1 cup = 220 g.
Common amounts
| Cups | Tablespoons | Grams | Ounces (weight) | Milliliters |
|---|---|---|---|---|
| 1/4 cup | 4.0 | 55 g | 1.94 oz | 59 mL |
| 1/3 cup | 5.3 | 73 g | 2.58 oz | 79 mL |
| 1/2 cup | 8.0 | 110 g | 3.88 oz | 118 mL |
| 2/3 cup | 10.7 | 147 g | 5.18 oz | 158 mL |
| 3/4 cup | 12.0 | 165 g | 5.82 oz | 177 mL |
| 1 cup | 16.0 | 220 g | 7.76 oz | 237 mL |
| 1.5 cups | 24.0 | 330 g | 11.64 oz | 355 mL |
| 2 cups | 32.0 | 440 g | 15.52 oz | 473 mL |
| 3 cups | 48.0 | 660 g | 23.28 oz | 710 mL |
| 4 cups | 64.0 | 880 g | 31.04 oz | 946 mL |
Why measuring baking soda by cup goes wrong
Baking soda is pure sodium bicarbonate. It needs an acid (buttermilk, lemon juice, yogurt, molasses, brown sugar, cocoa powder) to release the carbon dioxide that lifts a batter. A cup weighs 220 grams. Like baking powder, the practical unit is the teaspoon — and the rule of thumb is 1/4 teaspoon per cup of flour, paired with an acid.
Practical tips for working with baking soda
If a recipe contains both baking soda and baking powder, it's because the baker calculated exactly how much acid the recipe has. Soda neutralizes the acid (so the cake doesn't taste sour) and powder provides additional lift. Doubling the soda alone leaves a flat, soapy result. Older baking soda still works — it doesn't degrade the way powder does — but keep an open box in the fridge for odor absorption and a sealed box for baking.
Note from this ingredient's record: Pure sodium bicarbonate. Needs an acid (buttermilk, lemon juice, brown sugar) in the recipe to lift dough.
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