Convert Coulombs per foot to Millicoulombs per metre
Convert Coulombs per foot (C/ft) to Millicoulombs per metre (mC/m) instantly and accurately.
Conversion Formula
mC/m = C/ft × 3280.839895
About Coulombs per foot
The coulomb per foot (C/ft) equals exactly 1/0.3048 C/m ≈ 3.2808 C/m, used in North American electrical engineering for charge per unit length on power cables and conductor specifications. High-voltage DC cable charge density ratings are sometimes quoted in C/ft in ANSI/NEMA specifications; lightning protection standards may express charge density per foot of conductor. 1 C/ft = 1/0.3048 C/m ≈ 3.2808 C/m.
About Millicoulombs per metre
The millicoulomb per metre (mC/m) equals 10⁻³ C/m, the scale for charge on highly loaded triboelectric surfaces, electret films, and return-stroke lightning channel segments. Industrial electret microphone films carry surface charge densities of 0.1-10 mC/m², which corresponds to similar values per metre along a thin strip; return-stroke lightning channel charge is 1-10 mC/m distributed along the leader. 1 mC/m = 10⁻³ C/m = 10³ µC/m.
Quick Reference Table
| Coulombs per foot (C/ft) | Millicoulombs per metre (mC/m) |
|---|---|
| 1 C/ft | 3280.84 mC/m |
| 2 C/ft | 6561.68 mC/m |
| 5 C/ft | 16404.2 mC/m |
| 10 C/ft | 32808.4 mC/m |
| 25 C/ft | 82021 mC/m |
| 50 C/ft | 164042 mC/m |
| 100 C/ft | 328084 mC/m |