Pool Shock Calculator

Calculate how much shock your pool needs based on volume and shock strength.

For full water balance, use the main Pool Chemical Calculator.

See full guide →

Quick tips

When to shock: After heavy use, rain, or if chlorine is low. Run pump for several hours after adding shock. Avoid swimming until chlorine returns to normal (1–3 ppm).

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