Guide to Tanks >> Tools >> Total Hardness Calculator
 
To use the Total Hardness (as CaCO3) calculator, simply enter your concentrations of Ca2+ and Mg2+ in the boxes below and then click on the "Calculate Now" button.

Ca2+: 
Mg2+: 
 
Total Hardness (as CaCO3): 


Total Hardness Calculator provided courtesy of SVL Analytical, Inc. – www.svl.net.