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.