Cooking Substitutions, Recalculated
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What can I use instead of baking soda?

Best substitute for 1 tsp baking soda
3 tsp baking powder
Baking powder — Use about triple; reduce other acids.
tsp
Amounts below are for 1 tsp baking soda

3 substitutes for baking soda

SubstituteUse this muchNotes
Baking powder3 tsp baking powderUse about triple; reduce other acids.
Potassium bicarbonate1 tsp potassium bicarbonate1:1, sodium-free; add a pinch of salt.
Baker's ammonia1 tsp baker's ammoniaOld-school; best for very crisp cookies.

Baking soda is a strong leavener that needs an acid to work. Baking powder is the everyday swap, just at a larger amount.

Tips

  • Baking powder is the everyday swap - use about 3x and ease off other acids.
  • Baking soda is roughly four times stronger than baking powder.

FAQ

Can I use baking powder instead of baking soda?
Yes - use about three times as much and reduce other acidic ingredients.
Why can't I swap them 1:1?
Baking soda is far stronger and needs an acid; baking powder already includes one.