Electric Resistivity Converter

Convert ohm meter to ohm cm, micro-ohm cm, and other electric resistivity units free and instant. Built for electrical engineering and materials analysis. No sign-up required.

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Common Conversions
Quick access to frequently used conversions
Unit Information

SI Units

International System of Units (SI) measurements

Ω·m
si
Ohm-meter
Base unit of electric resistivity in the SI system
mΩ·m
si
Milliohm-meter
One thousandth of an ohm-meter (1 × 10⁻³ Ω·m)
μΩ·m
si
Microohm-meter
One millionth of an ohm-meter (1 × 10⁻⁶ Ω·m)
nΩ·m
si
Nanoohm-meter
One billionth of an ohm-meter (1 × 10⁻⁹ Ω·m)

centimeter

Unit measurements

Ω·cm
centimeter
Ohm-centimeter
Resistivity in ohm-centimeters (0.01 Ω·m)
mΩ·cm
centimeter
Milliohm-centimeter
One thousandth of an ohm-centimeter (0.01 mΩ·m)
μΩ·cm
centimeter
Microohm-centimeter
One millionth of an ohm-centimeter (0.01 μΩ·m)

Imperial Units

Traditional British and American measurements

Ω·in
imperial
Ohm-inch
Resistivity in ohm-inches (0.0254 Ω·m)
mΩ·in
imperial
Milliohm-inch
One thousandth of an ohm-inch (0.0254 mΩ·m)
μΩ·in
imperial
Microohm-inch
One millionth of an ohm-inch (2.54 × 10⁻⁸ Ω·m)
Ω·ft
imperial
Ohm-foot
Resistivity in ohm-feet (0.3048 Ω·m)
Ω·yd
imperial
Ohm-yard
Resistivity in ohm-yards (0.9144 Ω·m)

Specialized Units

Domain-specific measurements

Ω·mm²/m
specialized
Ohm-square millimeter per meter
Resistivity in ohm-square millimeters per meter (1 × 10⁻⁶ Ω·m)
Preferences

About Electric Resistivity

Electric resistivity (rho) quantifies how strongly a material opposes electric current. This free resistivity converter helps you switch between common units like ohm meter and ohm cm in one click.

The SI unit is ohm meter (ohm m), while labs and semiconductor workflows often use ohm cm or micro-ohm cm. Accurate conversion is essential when comparing datasheets, papers, and test reports.

Common Applications

  • Material selection for wires, contacts, and resistors
  • Quality control in metal and semiconductor manufacturing
  • Research and development in materials science
  • Electrical safety and insulation analysis
  • Circuit modeling and thermal design

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Added Sep 7, 2025

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