Convert Amperes per foot to Megaamperes per metre
Convert Amperes per foot (A/ft) to Megaamperes per metre (MA/m) instantly and accurately.
Conversion Formula
MA/m = A/ft × 3.280839895e-6
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 Megaamperes per metre
The megaampere per metre (MA/m) equals 10⁶ A/m. High-field electromagnets for physics research (Bitter magnets, hybrid magnets) generate 40-100 T requiring MA/m fields; particle accelerator dipole magnets (LHC: 8.3 T) operate at several MA/m; saturation magnetisation of iron is ≈1.36 MA/m. 1 MA/m = 10⁶ A/m ≈ 12 566 Oe.
Quick Reference Table
| Amperes per foot (A/ft) | Megaamperes per metre (MA/m) |
|---|---|
| 1 A/ft | 3.281 × 10-6 MA/m |
| 2 A/ft | 6.562 × 10-6 MA/m |
| 5 A/ft | 1.64 × 10-5 MA/m |
| 10 A/ft | 3.281 × 10-5 MA/m |
| 25 A/ft | 8.202 × 10-5 MA/m |
| 50 A/ft | 0.000164042 MA/m |
| 100 A/ft | 0.000328084 MA/m |