Siemens (S)
SI unit of electric conductance, the inverse of resistance. The older name "mho" means the same unit.
What is a siemens?
- Symbol
- S
- Quantity
- Electric Conductance
- Unit system
- SI
- Definition
- SI unit of electric conductance, the inverse of resistance. The older name "mho" means the same unit.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
The SI unit of conductance, used in circuit analysis and for transistor transconductance.
Siemens in other electric conductance units
- 1 S = 1000 mSSiemens to Millisiemens converter
- 1 S = 1000000 µSMicrosiemens
- 1 S = 0.001 kSKilosiemens
- 1 S = 1e-9 abSAbmho (absiemens)
- 1 S = 898755178736.81764 statSStatmho (statsiemens)
Siemens quick reference
| Siemens | Millisiemens | Microsiemens | Kilosiemens |
|---|---|---|---|
| 1 S | = 1000 mS | = 1000000 µS | = 0.001 kS |
| 10 S | = 10000 mS | = 10000000 µS | = 0.01 kS |
| 100 S | = 100000 mS | = 100000000 µS | = 0.1 kS |
| 1000 S | = 1000000 mS | = 1000000000 µS | = 1 kS |
Where the siemens fits
The next smaller electric conductance unit is the millisiemens (mS). 1 S = 1000 mS, and 1 mS = 0.001 S.
The next larger electric conductance unit is the kilosiemens (kS). 1 S = 0.001 kS, and 1 kS = 1000 S.
Frequently asked questions
- How many millisiemens are in one siemens?
- One siemens = 1000 mS (millisiemens).
- How many microsiemens are in one siemens?
- One siemens = 1000000 µS (microsiemens).
- How many kilosiemens are in one siemens?
- One siemens = 0.001 kS (kilosiemens).