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Ingredient guide / baking-soda

Baking soda
grams to cups.

Baking soda conversion based on King Arthur Baking's 3g per ½-teaspoon reference; cup results are bulk estimates, not a practical measuring method.

Density reference288g

per 1 cup · dry powder, normalized from ½ tsp

Convert an amount
Scale or convert a recipe See the full printable chart Compare density across ingredients Baking soda cups to grams Why a cup is not one number Read the full measuring guide

Common baking soda conversions

30 grams0.10 cupsless than a cup
50 grams0.17 cupsless than a cup
80 grams0.28 cupsless than a cup
100 grams0.35 cupsless than a cup
120 grams0.42 cupsless than a cup
150 grams0.52 cupsless than a cup
200 grams0.69 cupsless than a cup
250 grams0.87 cupsless than a cup
500 grams1.74 cupscup measure
Measurement source

King Arthur lists Baking Soda at ½ teaspoon = 3g; PantryGauge normalizes that stated spoon measure to 288g per cup and flags cup use as impractical.

Read King Arthur Baking Ingredient Weight Chart

Ingredient questions

Baking soda FAQ.

How many grams are in a cup of baking soda?

King Arthur Baking lists 3g for ½ teaspoon. PantryGauge normalizes that stated spoon measure to 288g per US cup using 96 half-teaspoons per cup; use the result only as a bulk reference.

How much baking soda should I use?

Follow the recipe's measured amount. Baking soda is usually used in teaspoons, and too much can make a bake taste soapy or brown too quickly.

Is baking soda the same as baking powder?

No. Baking soda is a base that needs sufficient acid in the recipe, while baking powder contains its own acid component.