mS/cm\text{mS/cm}

millisiemens per centimeter

Electrical conductivityexact by definition

The millisiemens per centimetre is a thousand microsiemens per centimetre and equals exactly 0.1 S/m, an exact factor from the prefix and the centimetre. It is the practical unit for high-salinity waters: seawater is about 53 mS/cm, brackish water 5 to 30, and softener brine and reverse osmosis reject run in the tens.

Watch out: Irrigation and soil salinity work uses this unit under the older name dS/m, decisiemens per metre, which is numerically identical to mS/cm. A soil extract at 4 dS/m and one at 4 mS/cm are the same salinity.

1 mS/cm\text{mS/cm} 1,000 μS/cm\mu\text{S/cm}

One millisiemens per centimeter in every electrical conductivity unit

100,000microsiemens per meter (μS/m)
1,000microsiemens per centimeter (μS/cm)
1,000micromho per centimeter (μmho/cm)
100millisiemens per meter (mS/m)
1millisiemens per centimeter (mS/cm)this unit
1millimho per centimeter (mmho/cm)
0.1siemens per meter (S/m)
0.001siemens per centimeter (S/cm)
1.72414e-07percent IACS (%IACS)
1.00000e-07megasiemens per meter (MS/m)