Electrical Conductivity Converter
Convert between siemens per meter, millisiemens and microsiemens per centimeter, % IACS and other units of electrical conductivity.
1 siemens per meter = 1 siemens per meter
Most used conductivity units
- Microsiemens per centimeter µS/cm 1 µS/cm = 0.0001 S/m
- Siemens per meter S/m Base unit
- Millisiemens per centimeter mS/cm 1 mS/cm = 0.1 S/m
- Percent IACS % IACS 1 % IACS = 580,000 S/m
- Megasiemens per meter MS/m 1 MS/m = 1,000,000 S/m
- Siemens per centimeter S/cm 1 S/cm = 100 S/m
- Mho per meter ℧/m 1 ℧/m = 1 S/m
Popular conductivity conversions
- Microsiemens per centimeter to millisiemens per centimeter 1 µS/cm = 0.001 mS/cm
- Millisiemens per centimeter to microsiemens per centimeter 1 mS/cm = 1,000 µS/cm
- Siemens per meter to microsiemens per centimeter 1 S/m = 10,000 µS/cm
- Percent IACS to siemens per meter 1 % IACS = 580,000 S/m
What is conductivity?
Electrical conductivity is the reciprocal of resistivity: how well a material carries current. Metals are compared in S/m or as a percentage of the International Annealed Copper Standard (% IACS). Water quality meters measure conductivity in µS/cm or mS/cm, because dissolved salts make water conductive: pure water is below 1 µS/cm, drinking water typically 50–800 µS/cm and seawater about 50 mS/cm.
Conductivity units from smallest to largest
Every proportional conductivity unit on the site, ordered by size and expressed in siemens per meter.
- Microsiemens per centimeter 0.0001 S/m
- Millisiemens per centimeter 0.1 S/m
- Siemens per meter 1 S/m
- Mho per meter 1 S/m
- Siemens per centimeter 100 S/m
- Percent IACS 580,000 S/m
- Megasiemens per meter 1,000,000 S/m
All 7 conductivity units
Units
Frequently asked questions
How do I convert µS/cm to mS/cm?
Divide by 1,000: 1,500 µS/cm = 1.5 mS/cm.
What is 100% IACS?
The conductivity of standard annealed copper, 58.0 MS/m (5.80 × 10⁷ S/m).