Pool Cyanuric Acid Calculator

Calculate how much stabilizer (cyanuric acid) your pool needs to reach target CYA.

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Quick tips

Ideal CYA: 30–50 ppm for outdoor pools. Too high reduces chlorine effectiveness; too low lets chlorine burn off quickly. Add stabilizer slowly and re-test after a few days.

WaterBalanceTools provides practical calculators and guides for pool and hot tub water chemistry. These tools are designed to help maintain safe chlorine, pH, and total alkalinity within a healthy water balance.

Published by Water Balance Tools · Operated by Albor Digital LLC

Last updated: April 2026