Skip to content
ScienceQuest

Resistivity conversion

4 units, with Ω·m as the base. Every value in the factor table is the number you multiply by, so reading across a row converts out of that unit and reading down a column converts into it.

Factor table

Resistivity conversion factors. Each cell is the value to multiply the row unit by to get the column unit.
from \ to Ω·mΩ·cmµΩ·cmΩ·mm²/m
Ω·m 1 100 1 × 10⁸ 1 × 10⁶
Ω·cm 0.01 1 1 × 10⁶ 10,000
µΩ·cm 1 × 10⁻⁸ 1 × 10⁻⁶ 1 0.01
Ω·mm²/m 1 × 10⁻⁶ 1 × 10⁻⁴ 100 1

Prefixes such as milli, micro and kilo follow the SI prefixes table.

The values are facts and free to use; this table’s selection and presentation are © 2026 ScienceQuest.

Worked example

  1. 1 Ω·cm in Ω·m
  2. = 1 × 0.01
  3. = 0.01 Ω·m

Convert a number

The table gives the factor; the unit converter does the arithmetic, remembers the units you picked, and turns any conversion into a link you can share.

Calculators that use resistivity

Other quantities