Convert Picofarads per metre to Femtofarads per metre
Convert Picofarads per metre (pF/m) to Femtofarads per metre (fF/m) instantly and accurately.
Conversion Formula
fF/m = pF/m × 1000
About Picofarads per metre
The picofarad per metre (pF/m) equals 10⁻¹² F/m, the most widely used permittivity scale. The vacuum permittivity ε₀ ≈ 8.854 pF/m; air at STP is ≈8.859 pF/m; PTFE PCB substrate is ≈19 pF/m; FR-4 laminate is ≈37 pF/m. Dielectric specifications in IPC-4101 and IEC 60250 list pF/m values. 1 pF/m = 10⁻¹² F/m.
About Femtofarads per metre
The femtofarad per metre (fF/m) equals 10⁻¹⁵ F/m, the smallest practical permittivity scale. Permittivity of near-perfect vacuum regions at sub-pF/m levels, noise-floor permittivity in cryogenic microwave resonators, and modelled permittivity of hypothetical near-zero-index metamaterial layers all span the fF/m range. 1 fF/m = 10⁻¹⁵ F/m = 10⁻³ pF/m.
Quick Reference Table
| Picofarads per metre (pF/m) | Femtofarads per metre (fF/m) |
|---|---|
| 1 pF/m | 1000 fF/m |
| 2 pF/m | 2000 fF/m |
| 5 pF/m | 5000 fF/m |
| 10 pF/m | 10000 fF/m |
| 25 pF/m | 25000 fF/m |
| 50 pF/m | 50000 fF/m |
| 100 pF/m | 100000 fF/m |