Pool Chemical Calculator & LSI

Keep your pool safe and balanced with Pool Chemical Calculator — chlorine dosing, LSI, pH, alkalinity and more, completely offline.

WATER CHEMISTRY
• Free and combined chlorine dosing
• pH adjustment (muriatic acid / soda ash)
• Total alkalinity and calcium hardness balancing
• Cyanuric acid (CYA) stabiliser dosing

LANGELIER SATURATION INDEX (LSI)
• Real-time LSI as parameters change
• Corrosive or scaling tendency indicator
• Recommended correction chemicals

CHEMICAL DOSING
• Trichlor, dichlor, calcium hypochlorite, liquid chlorine
• Shock dosing by volume and current readings

POOL VOLUME
• Rectangle, oval, kidney and L-shaped pool calculator
• US gallons and litres

Offline — no account or login needed.