Convert Amperes per foot to Milliamperes per metre
Convert Amperes per foot (A/ft) to Milliamperes per metre (mA/m) instantly and accurately.
Conversion Formula
mA/m = A/ft × 3280.839895
About Amperes per foot
The ampere per foot (A/ft) equals 1/0.3048 A/m ≈ 3.281 A/m. Used in US electromagnetic coil design and transformer winding specifications where dimensions are in feet; older US Navy and DoD magnetic shielding specifications for shipboard demagnetisation state H values in A/ft. 1 A/ft = 1/0.3048 A/m ≈ 3.2808 A/m.
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).
Quick Reference Table
| Amperes per foot (A/ft) | Milliamperes per metre (mA/m) |
|---|---|
| 1 A/ft | 3280.84 mA/m |
| 2 A/ft | 6561.68 mA/m |
| 5 A/ft | 16404.2 mA/m |
| 10 A/ft | 32808.4 mA/m |
| 25 A/ft | 82021 mA/m |
| 50 A/ft | 164042 mA/m |
| 100 A/ft | 328084 mA/m |