Baking Soda Pool Calculator
Calculate how much baking soda you need to raise total alkalinity in your pool.
How Much Baking Soda Does Your Pool Need?
Enter your pool volume and total alkalinity (TA) to estimate the amount of sodium bicarbonate needed.
Pool
Total Alkalinity
Use your latest total alkalinity
test result.
Important:
Baking soda is normally used to raise
total alkalinity, not to
calculate a specific pH increase. The amount
required cannot be reliably determined from
current pH and target pH alone.
Advanced Options
Use 100% for pure sodium bicarbonate.
If your product label gives a lower
active percentage, enter that value.
Used to estimate the number of
bags required.
Estimated Baking Soda Needed
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Baking Soda Pool Chart
Select the total alkalinity increase you need to see estimated baking soda amounts for common pool sizes.
| Pool Volume | TA Increase | Baking Soda (lb) | Baking Soda (kg) |
|---|
Baking Soda and Pool pH
Will baking soda raise the pH of a pool?
Baking soda can raise pH, particularly when the
starting pH is low, but its primary pool-water use
is raising total alkalinity. The amount of pH change
is not predictable from pool volume and pH difference
alone.
How much baking soda raises alkalinity by 10 ppm?
As a practical estimate, about 1.4 pounds of sodium
bicarbonate per 10,000 gallons of pool water raises
total alkalinity by approximately 10 ppm.
Should I use baking soda or soda ash to raise pH?
The answer depends on what needs to be corrected.
Baking soda is primarily used to increase total
alkalinity. Soda ash is commonly used when the main
objective is to raise pH.
Can I calculate baking soda from pH alone?
No. A pH reading alone does not provide enough
information to calculate a reliable baking soda
dose. Total alkalinity should also be considered.