Calculadora de Dureza da Água

Dureza total (ppm CaCO₃) = (Ca_ppm/40,08 + Mg_ppm/24,31) × 100,09.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

Dureza total
149,3 mg/L CaCO₃

Formula

H = (Ca/40,08 + Mg/24,31) × 100,09

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