siemens per meter
Electrical conductivityexact by definition
The siemens per metre is the SI unit of electrical conductivity, the reciprocal of resistivity in ohm-metres. Its factor of 1 is exact as the coherent SI combination. It spans an enormous range: copper is 5.96e7 S/m, seawater about 5 S/m, drinking water around 0.05 S/m and ultrapure water 5.5e-6 S/m.
Watch out: Thermal conductivity and electrical conductivity share the word conductivity and nothing else. Thermal conductivity is measured in W/(m·K) and describes heat flow; this one is S/m and describes charge flow. In a water treatment context conductivity always means the electrical quantity.
| 1 | 10,000 |
One siemens per meter in every electrical conductivity unit
| 1,000,000 | microsiemens per meter (μS/m) | |
| 10,000 | microsiemens per centimeter (μS/cm) | |
| 10,000 | micromho per centimeter (μmho/cm) | |
| 1,000 | millisiemens per meter (mS/m) | |
| 10 | millisiemens per centimeter (mS/cm) | |
| 10 | millimho per centimeter (mmho/cm) | |
| 1 | siemens per meter (S/m)this unit | |
| 0.01 | siemens per centimeter (S/cm) | |
| 0.00000172414 | percent IACS (%IACS) | |
| 0.000001 | megasiemens per meter (MS/m) |
Solvers that use electrical conductivity