Convert Microamperes per metre to Oersteds
Convert Microamperes per metre (µA/m) to Oersteds (Oe) instantly and accurately.
Conversion Formula
Oe = µA/m × 1.256637061e-8
About Microamperes per metre
The microampere per metre (µA/m) equals 10⁻⁶ A/m. The Earth's geomagnetic field at mid-latitudes is approximately 40-50 A/m (50 000 nT / µ₀); low-frequency EMC immunity testing of sensitive electronics involves µA/m-level ambient AC magnetic fields. 1 µA/m = 10⁻⁶ A/m = 10⁻³ mA/m.
About Oersteds
The oersted (Oe) equals exactly 1000/(4π) A/m ≈ 79.577 A/m, the CGS unit of magnetic field strength named after Hans Christian Ørsted. Still widely used in permanent magnet characterisation (NdFeB, SmCo, AlNiCo), magnetic recording, and older MRI literature. Earth's surface field is ≈ 0.5 Oe; a typical speaker magnet ≈ 5000 Oe. 1 Oe = 1000/(4π) A/m.
Quick Reference Table
| Microamperes per metre (µA/m) | Oersteds (Oe) |
|---|---|
| 1 µA/m | 1.257 × 10-8 Oe |
| 2 µA/m | 2.513 × 10-8 Oe |
| 5 µA/m | 6.283 × 10-8 Oe |
| 10 µA/m | 1.257 × 10-7 Oe |
| 25 µA/m | 3.142 × 10-7 Oe |
| 50 µA/m | 6.283 × 10-7 Oe |
| 100 µA/m | 1.257 × 10-6 Oe |