Convert Microsiemens to Millisiemens
Convert Microsiemens (µS) to Millisiemens (mS) instantly and accurately.
Conversion Formula
mS = µS × 0.001
About Microsiemens
The microsiemens (µS) equals 10⁻⁶ S, the standard unit for water-quality conductivity measurement and analogue signal-path impedance. Drinking water has conductivity of 50-500 µS/cm; a 1 MΩ resistor presents 1 µS; conductivity meters for hydroponics and aquaculture read directly in microsiemens or millisiemens per centimetre. 1 µS = 10⁻³ mS = 10⁻⁶ S.
About Millisiemens
The millisiemens (mS) equals 10⁻³ S, covering physiological saline, seawater, and electrochemical cell conductances. Seawater conductivity is about 50 mS/cm; blood plasma is around 15 mS/cm; a 1 kΩ resistor presents 1 mS; a forward-biased transistor junction at a few milliamperes has dynamic conductance in the millisiemens range. 1 mS = 10⁻³ S = 10³ µS.
Quick Reference Table
| Microsiemens (µS) | Millisiemens (mS) |
|---|---|
| 1 µS | 0.001 mS |
| 2 µS | 0.002 mS |
| 5 µS | 0.005 mS |
| 10 µS | 0.01 mS |
| 25 µS | 0.025 mS |
| 50 µS | 0.05 mS |
| 100 µS | 0.1 mS |