Convert Femtocoulombs per metre to Coulombs per metre
Convert Femtocoulombs per metre (fC/m) to Coulombs per metre (C/m) instantly and accurately.
Conversion Formula
C/m = fC/m × 1.000000000e-15
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.
About Coulombs per metre
The coulomb per metre (C/m) is the SI coherent unit of linear charge density, equal to 1 A·s·m⁻¹. A typical lightning return stroke carries about 2-5 C/m along the channel; heavily charged surfaces like Van de Graaff sphere surfaces are described in C/m² (surface), but a thin wire coated with 1 C of charge per metre has a C/m linear density. Textbook Gauss's law problems routinely use C/m for infinite line-charge problems. 1 C/m = 10³ mC/m.
Quick Reference Table
| Femtocoulombs per metre (fC/m) | Coulombs per metre (C/m) |
|---|---|
| 1 fC/m | 1 × 10-15 C/m |
| 2 fC/m | 2 × 10-15 C/m |
| 5 fC/m | 5 × 10-15 C/m |
| 10 fC/m | 1 × 10-14 C/m |
| 25 fC/m | 2.5 × 10-14 C/m |
| 50 fC/m | 5 × 10-14 C/m |
| 100 fC/m | 1 × 10-13 C/m |