Ohm meter (Ω·m)

SI unit of electrical resistivity, a property of the material itself.

What is an ohm-meter?

Symbol: Ω·m
Quantity: Electric Resistivity
Unit system: SI
Definition: SI unit of electrical resistivity, a property of the material itself.
Exact: Yes, the value is exact by definition
Source: SI Brochure, 9th edition (BIPM, 2019)

The SI unit of resistivity, used in materials tables, geophysics and earth resistivity surveys.

Ohm meter in other units
Ohm meter	Microohm centimeter	Ohm square millimeter per meter	Ohm circular mil per foot
1 Ω·m	= 100000000 µΩ·cm	= 1000000 Ω·mm²/m	≈ 601530493.6 Ω·cmil/ft
10 Ω·m	= 1000000000 µΩ·cm	= 10000000 Ω·mm²/m	≈ 6015304936 Ω·cmil/ft
100 Ω·m	= 10000000000 µΩ·cm	= 100000000 Ω·mm²/m	≈ 60153049360 Ω·cmil/ft
1000 Ω·m	= 100000000000 µΩ·cm	= 1000000000 Ω·mm²/m	≈ 601530493600 Ω·cmil/ft

The next smaller electric resistivity unit is the ohm-centimeter (Ω·cm). 1 Ω·m = 100 Ω·cm, and 1 Ω·cm = 0.01 Ω·m.

How many microohm-centimeters are in one ohm-meter?: One ohm-meter = 100000000 µΩ·cm (microohm-centimeters).
How many ohm square millimeters per meter are in one ohm-meter?: One ohm-meter = 1000000 Ω·mm²/m (ohm square millimeters per meter).
How many ohm circular mils per foot are in one ohm-meter?: One ohm-meter ≈ 601530493.6 Ω·cmil/ft (ohm circular mils per foot).