Calculate how much CO2 is in your water from pH and KH


Here's a simple equation to calculate CO2 if you know pH and KH
CO2 = 3.0 * KH * 10^(7.00 - pH)

Source: Co2 Systems

Calculate CO2 levels from KH and pH.
Specify pH and the KH (in dh):

pH:

KH (in dh)

CO2 (in ppm or mg/L):

Google search: KH pH and CO2


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