How it works
Convert electrical resistance between ohms and metric prefixes. This changes only the unit, not circuit configuration.
result = value × source factor / destination factor
Worked example
Show example inputs and result
Value: 100 · From unit: Ω · To unit: mΩ.
- Converted value
- 100,000 mΩ
Questions and answers
Which unit convention is used?
Convert electrical resistance between ohms and metric prefixes. This changes only the unit, not circuit configuration.
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Conversion reference: NIST SI Guide
Method reviewed: October 8, 2026 · Methods & accuracy