Convert Oersteds to Nanoamperes per metre
Convert Oersteds (Oe) to Nanoamperes per metre (nA/m) instantly and accurately.
Conversion Formula
nA/m = Oe × 79577471550
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.
About Nanoamperes per metre
The nanoampere per metre (nA/m) equals 10⁻⁹ A/m. Geomagnetic surveys for mineral exploration report spatial variations in Earth's field at nA/m resolution; optically pumped caesium and rubidium magnetometers used in archaeological prospection detect nA/m-scale buried structure anomalies. 1 nA/m = 10⁻⁹ A/m = 10⁻³ µA/m.
Quick Reference Table
| Oersteds (Oe) | Nanoamperes per metre (nA/m) |
|---|---|
| 1 Oe | 7.958 × 1010 nA/m |
| 2 Oe | 1.592 × 1011 nA/m |
| 5 Oe | 3.979 × 1011 nA/m |
| 10 Oe | 7.958 × 1011 nA/m |
| 25 Oe | 1.989 × 1012 nA/m |
| 50 Oe | 3.979 × 1012 nA/m |
| 100 Oe | 7.958 × 1012 nA/m |