What is being measured?
Electrical resistivity is a material quantity. Converting its units does not determine the resistance of an object without length, area and conditions.
Resistivity is a material property; resistance requires length and cross-sectional area.
Choose a unit definition
Symbols, prefixes and conventions matter. Each row links to a definition, a worked example and a comparison table. Units of different quantities are kept separate even when symbols or dimensions look similar.
Ohm meters (Ω·m)
Definition, reference values and linked conversions.
Ohm centimeters (Ω·cm)
Definition, reference values and linked conversions.
Microohm meters (µΩ·m)
Definition, reference values and linked conversions.
Microohm centimeters (µΩ·cm)
Definition, reference values and linked conversions.
Choose the conversion direction
Start with the unit attached to the original measurement. Select the unit needed by the receiving report, specification or formula. Conversion tools preserve the measured quantity; calculating another property can require additional measured inputs and assumptions.
Precision and common mistakes
- Keep the source and target quantity consistent. A matching symbol is not enough to establish a compatible definition.
- Record the original measurement precision. Showing twelve significant digits in a table does not make a rounded input more precise.
- Check symbol capitalization, prefixes and any regional convention in the source. Use the displayed unit definition rather than a similarly named unit.
- Factors involving repeating fractions or π use finite numerical precision. Round the final answer to the precision justified by your input.
Use a working converter
- Electrical resistivity converter
- Ohm meters to Ohm centimeters converter
- Ohm centimeters to Ohm meters converter
- Ohm meters to Microohm meters converter
- Microohm meters to Ohm meters converter
- Ohm meters to Microohm centimeters converter
Source and verification scope
Examples and tables are computed from the versioned unit definitions used by the linked converters. The source access dates appear below. Computandum is independent of the cited organizations; a citation does not mean that a publisher endorses this page or an actual project.