The siemens (symbol S) is a named SI derived unit of electric conductance, per the BIPM SI Reference Point.
- Name: siemens
- Symbol: S
- Unit type: Named SI derived unit
- Quantity kind: electric conductance
- Expressed in base SI units: kg⁻¹ m⁻² s³ A²
- Expressed in other SI units: A V⁻¹
- Defining resolution: https://si-digital-framework.org/bodies/CGPM#CGPM14-Decl
- SI prefix restriction: false