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

Ca2+: 
     
Calcium Hardness (as CaCO3): 


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