Convert Coulombs per foot to Femtocoulombs per metre
Convert Coulombs per foot (C/ft) to Femtocoulombs per metre (fC/m) instantly and accurately.
Conversion Formula
fC/m = C/ft × 3.280839895e+15
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 Femtocoulombs per metre
The femtocoulomb per metre (fC/m) equals 10⁻¹⁵ C/m, arising in scanning probe measurements of charged surface features and in single-molecule electrostatic force microscopy. A single elementary charge (1.6 × 10⁻¹⁹ C) localised on a 1 µm polymer segment gives about 0.16 fC/m; EFM tip-sample interaction models use fC/m-scale induced charge distributions. 1 fC/m = 10⁻¹⁵ C/m = 10⁻³ pC/m.
Quick Reference Table
| Coulombs per foot (C/ft) | Femtocoulombs per metre (fC/m) |
|---|---|
| 1 C/ft | 3.281 × 1015 fC/m |
| 2 C/ft | 6.562 × 1015 fC/m |
| 5 C/ft | 1.64 × 1016 fC/m |
| 10 C/ft | 3.281 × 1016 fC/m |
| 25 C/ft | 8.202 × 1016 fC/m |
| 50 C/ft | 1.64 × 1017 fC/m |
| 100 C/ft | 3.281 × 1017 fC/m |