Total Hardness Calculator

Enter the hardness (ppm) of each applicable substance in the form below. Hardness will be shown as equivalents in Calcium Carbonate (CaCO3).

The most common substances are listed at the top of the form. To include additional substances in the calculation, scroll down below the Total Hardness result.

Most Common Substances
Calcium (Ca++) 
Iron (Fe++) 
Iron (Fe+++) 
Magnesium (Mg++) 
Manganese (Mn++) 
 
Total Hardness (as CaCO3): 0 ppm (0 grains per gallon)
 
Enter additional substances below | Go to water softener sizing calculator
 
Additional Substances
Aluminum (Al+++) 
Aluminum Sulfur Oxygen (Al2(SO4)3(a)
Aluminum Chlorine (AlCl3) 
Aluminum Oxygen Hydrogen (Al(OH)3) 
Barim (Ba++) 
Barium Oxygen Hydrogen (Ba(OH)2) 
Barium Sulfur Oxygen (BaSO4) 
Calcium Chlorine (CaCl2) 
Calcuim Carbon Oxygen (CaCO3) 
Calcium Hydrogen Carbon Oxygen (Ca(HCO3)2) 
Calcium Oxygen (CaO) 
Calcium Oxygen Hydrogen (Ca(OH)2) 
Calcium Sulfur Oxygen (CaSO4) 
Chlorine (Cl-) 
Carbon Oxygen (CO2) 
Carbon Oxygen (CO3--) 
Copper (Cu++) 
Copper (Cu+++) 
Copper Sulfur Oxygen (CuSO4) 
Fluorine (F-) 
Iron Oxygen Hydrogen (Fe(OH)3) 
Iron Sulfur Oxygen (FeSO4(a)
Iron Sulfur Oxygen (Fe2(SO4)3) 
Iron Chlorine (FeCl3) 
Hydrogen (H+) 
Hydrogen Carbon Oxygen (HCO3-) 
Potassium (K+) 
Potassium Chlorine (KCl) 
Potassium Carbon Oxygen (K2CO3) 
Magnesium Chlorine (MgCl2) 
Magnesium Carbon Oxygen (MgCO3) 
Magnesium Hydrogen Carbon Oxygen (Mg(HCO3)2) 
Magnesium Oxygen (MgO) 
Magnesium Oxygen Hydrogen (Mg(OH)2) 
Magnesium Nitrogen Oxygen (Mg(NO3)2) 
Magnesium Sulfur Oxygen (MgSO4) 
Sodium (Na+) 
Sodium Chlorine (NaCl) 
Sodium Carbon Oxygen (Na2CO3) 
Sodium Hydrogen Carbon Oxygen (NaHCO3) 
Sodium Nitrogen Oxygen (NaNO3) 
Sodium Oxygen Hydrogen (NaOH) 
Sodium Sulfur Oxygen (Na2SO4(a)
Nitrogen Hydrogen (NH3) 
Nitrogen Hydrogen (NH4) 
Nitrogen Hydrogen Oxygen (NH4OH) 
Sulfur Oxygen Nitrogen Hydrogen ((NH4)2SO4) 
Nitrogen Oxygen (NO3) 
Oxygen Hydrogen (OH) 
Phosphorus Oxygen (PO4---) 
Sulfur Oxygen (SO4--) 
Zinc (Zn++) 
(a)anydrous  
View Resulting Total Hardness


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