Hardness of water

°dH
°fH
°e
ppm
mmol/l
mval/l
gr/gal(US)
mg CaO/l
mg CaCO3/l
mg Ca2+/l
mg Mg2+/l


Rounding: significant digits.
Decimal sign:
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© Bernd Krüger, 14.07.2004, 11.08.2018