Conductivity convertor
This converter converts conductivity units, such as siemens per metre (S/m) and mho/cm, and estimates TDS in ppm.
Understanding conductivity and TDS
Electrical conductivity (EC) describes how readily water conducts an electric current and depends on the dissolved ions, such as those from mineral salts. Total dissolved solids (TDS) describes the amount of dissolved material in the water. Conductivity and TDS are related, but converting between them gives an estimate: the appropriate conversion factor depends on the types and concentrations of dissolved substances. Temperature also affects conductivity, so compare readings at the same reference temperature. Use the converter above to compare conductivity units and obtain an indicative TDS value; a conductivity-based estimate does not replace a laboratory determination of TDS.