Total alkalinity calculator
PROBaking soda to raise total alkalinity.
Short answer: lb ≈ (gal/10k) × (ΔTA/10) × 1.5. 20,000 gal, +40 ppm TA = 12 lb baking soda. Enter your measurements above and the total alkalinity calculator returns the quantity, unit conversions and an estimated cost instantly, in imperial or metric — no sign-up needed.
What do you need to measure?
What is the answer?
Baking soda
12.00 lb
+40 ppm TA
Ounces
192.0
How does the total alkalinity calculator work?
lb ≈ (gal/10k) × (ΔTA/10) × 1.5.
What does a worked example look like?
20,000 gal, +40 ppm TA = 12 lb baking soda.
What do people ask most?
›Also raises pH?
Slightly — around 0.1 pH per major TA correction.
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Where can you learn more?
Read field notes on estimating and materials, or browse every calculator we make.