Convert Millisiemens to Siemens
Convert Millisiemens (mS) to Siemens (S) instantly and accurately.
Conversion Formula
S = mS × 0.001
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.
About Siemens
The siemens (S) is the SI derived unit of electrical conductance, equal to 1 ampere per volt (1 A/V = 1 Ω⁻¹ = 1 kg⁻¹·m⁻²·A²·s³), named after Werner von Siemens (1816-1892). Also known as the mho (℧), it describes how easily current flows: a 1 Ω resistor has 1 S conductance. Power MOSFETs are characterised by 1/Rₛ_ₒₙ in siemens; large RF transistors operate with transconductance of 1-10 S.
Quick Reference Table
| Millisiemens (mS) | Siemens (S) |
|---|---|
| 1 mS | 0.001 S |
| 2 mS | 0.002 S |
| 5 mS | 0.005 S |
| 10 mS | 0.01 S |
| 25 mS | 0.025 S |
| 50 mS | 0.05 S |
| 100 mS | 0.1 S |