Water Hardness Calculator

Calculates the hardness of water from the mineral contents of water.

Mineral content is displayed on the water bottles commercially available.
Water Hardness
Calcium content Ca2+
    1. mg/L grain/gallon
Magnesium content Mg2+
 
Hardness
    1.  
    2. mg/L
    3. of CaCO3
=
    1.  
    2. grain/gallon
Indication
    1.  
The water hardness is using American degree equivalent to mg/L.
Water hardness(mg/L)=Ca(mg/L)×2.497 + Mg(mg/L)×4.118

Classification of hard water and soft water is based on WQA (Water Quality Asociation).

※This site shall not be liable for any damages arising out of the use this library.

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