Convert Amperes per metre to Femtoamperes per metre
Convert Amperes per metre (A/m) to Femtoamperes per metre (fA/m) instantly and accurately.
Conversion Formula
fA/m = A/m × 1000000000000000
About Amperes per metre
The ampere per metre (A/m) is the SI coherent unit of magnetic field strength H, expressing the magnetomotive force per unit length. It defines how strongly a field drives magnetic flux through a material. Earth's geomagnetic H field is approximately 40-60 A/m; a typical transformer core operates at 100-1000 A/m. 1 A/m = 1 A m⁻¹.
About Femtoamperes per metre
The femtoampere per metre (fA/m) equals 10⁻¹⁵ A/m. Used in SQUID (superconducting quantum interference device) magnetometer research to characterise noise floors in ultra-sensitive magnetic field measurements; the Earth's geomagnetic DC drift and biomagnetic fields from neurons produce field gradients at the fA/m level in heavily shielded rooms. 1 fA/m = 10⁻¹⁵ A/m.
Quick Reference Table
| Amperes per metre (A/m) | Femtoamperes per metre (fA/m) |
|---|---|
| 1 A/m | 1 × 1015 fA/m |
| 2 A/m | 2 × 1015 fA/m |
| 5 A/m | 5 × 1015 fA/m |
| 10 A/m | 1 × 1016 fA/m |
| 25 A/m | 2.5 × 1016 fA/m |
| 50 A/m | 5 × 1016 fA/m |
| 100 A/m | 1 × 1017 fA/m |