Convert Milliamperes per metre to Oersteds
Convert Milliamperes per metre (mA/m) to Oersteds (Oe) instantly and accurately.
Conversion Formula
Oe = mA/m × 1.256637061e-5
About Milliamperes per metre
The milliampere per metre (mA/m) equals 10⁻³ A/m. Antenna near-field H-field measurements and EMC pre-compliance tests use mA/m; CISPR 14/16 and FCC Part 15 limit radiated field strength for consumer electronics in mA/m or equivalent dBµA/m at specified distances. 1 mA/m = 10⁻³ A/m = 10⁻³ Oe × (1000/4π).
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
| Milliamperes per metre (mA/m) | Oersteds (Oe) |
|---|---|
| 1 mA/m | 1.257 × 10-5 Oe |
| 2 mA/m | 2.513 × 10-5 Oe |
| 5 mA/m | 6.283 × 10-5 Oe |
| 10 mA/m | 0.000125664 Oe |
| 25 mA/m | 0.000314159 Oe |
| 50 mA/m | 0.000628319 Oe |
| 100 mA/m | 0.00125664 Oe |