Convert Amperes per foot to Amperes per inch
Convert Amperes per foot (A/ft) to Amperes per inch (A/in) instantly and accurately.
Conversion Formula
A/in = A/ft × 0.08333333333
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 Amperes per inch
The ampere per inch (A/in) equals 1/0.0254 A/m ≈ 39.370 A/m. Standard unit in US magnetic core and inductor datasheets from manufacturers like Magnetics Inc. and Ferroxcube; B-H curves and core loss specifications for powder cores and ferrites are commonly plotted in Oe (H-axis) or A/in in North American catalogs. 1 A/in = 1/0.0254 A/m ≈ 39.37 A/m.
Quick Reference Table
| Amperes per foot (A/ft) | Amperes per inch (A/in) |
|---|---|
| 1 A/ft | 0.0833333 A/in |
| 2 A/ft | 0.166667 A/in |
| 5 A/ft | 0.416667 A/in |
| 10 A/ft | 0.833333 A/in |
| 25 A/ft | 2.08333 A/in |
| 50 A/ft | 4.16667 A/in |
| 100 A/ft | 8.33333 A/in |