Relative permeability to magnetic susceptibility
Type a value in μr to get it in χm instantly.
3,999χm
That's about the same as electrical steel.
Convert the other way: χm to μr
What it means
How strongly does it gather field?
Figures for iron and alloys are typical maximum or initial values. Real permeability changes with field strength, frequency and temperature.
The math
How to convert μr to χm
Absolute permeability is μ = μr × 1.2566 μH/m, and susceptibility is χ = μr − 1.
Example: 4,000 μr = 3,999 χm.
Every unit
Your permeability in every unit
Tables
μr to χm conversion table
| μr | χm |
|---|---|
| 1 μr | 0 χm |
| 10 μr | 9 χm |
| 50 μr | 49 χm |
| 100 μr | 99 χm |
| 250 μr | 249 χm |
| 500 μr | 499 χm |
| 1,000 μr | 999 χm |
| 2,000 μr | 1,999 χm |
| 4,000 μr | 3,999 χm |
| 10,000 μr | 9,999 χm |
| 50,000 μr | 49,999 χm |
| 100,000 μr | 99,999 χm |
χm to μr conversion table
| χm | μr |
|---|---|
| 1 χm | 2 μr |
| 10 χm | 11 μr |
| 50 χm | 51 μr |
| 100 χm | 101 μr |
| 250 χm | 251 μr |
| 500 χm | 501 μr |
| 1,000 χm | 1,001 μr |
| 2,000 χm | 2,001 μr |
| 4,000 χm | 4,001 μr |
| 10,000 χm | 10,001 μr |
| 50,000 χm | 50,001 μr |
| 100,000 χm | 100,001 μr |
Quick answers
Quick answers
- How many χm is 1 μr?
- 1 μr is 0 χm.
- How many χm is 10 μr?
- 10 μr is 9 χm.
- How many χm is 4,000 μr?
- 4,000 μr is 3,999 χm.
The units
About these units
Relative permeability (μr)
Compared with a vacuum, which is 1.
Magnetic susceptibility (χm)
What the material adds on top of vacuum: μr − 1. Negative for diamagnetic materials.
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