Electrical Conductivity Converter
Convert electrical conductivity and resistivity between siemens per metre, millisiemens, mho, and ohm-metre. Useful for students, laboratory work, and engineers comparing material specifications. With instant results as you type.
How to use
- Enter a value or select an option.
- Choose the unit — the result updates live.
- See the converted values in all units below.
Good to know
- Conductivity and resistivity are inverses of each other — high conductivity means low resistivity.
- Copper conducts better than aluminium at the same size.
- Pure water conducts very little; dissolved salts raise conductivity.
- Values change with temperature, so note the temperature when comparing.
Note: Resistivity = 1 / Conductivity. Mho is the old name for siemens (1 mho = 1 S).
Frequently Asked Questions (FAQ)
What does this conductivity converter do?
It converts electrical conductivity and resistivity between siemens per metre, millisiemens, mho and ohm metre, with instant results as you type.
What is the difference between conductivity and resistivity?
They are inverses of each other: resistivity equals 1 divided by conductivity. High conductivity means low resistivity.
What is a mho?
A mho is the old name for the siemens — 1 mho equals 1 S. It is the same unit, just an older name.
Which units does it convert between?
Siemens per metre (S/m), millisiemens per metre, microsiemens per cm, ohm metre and ohm centimetre — conductivity and resistivity together.