Convert Femtofarads per metre to Picofarads per centimetre
Convert Femtofarads per metre (fF/m) to Picofarads per centimetre (pF/cm) instantly and accurately.
Conversion Formula
pF/cm = fF/m × 1.000000000e-5
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.
About Picofarads per centimetre
The picofarad per centimetre (pF/cm) equals 10⁻¹⁰ F/m = 100 pF/m, used for transmission-line capacitance per unit length in RF engineering. A standard 50 Ω air-dielectric coaxial line has capacitance per unit length ≈67 pF/m ≈0.67 pF/cm; PTFE coax gives ≈0.9 pF/cm. RF substrate characterisation often quotes pF/cm. 1 pF/cm = 10⁻¹⁰ F/m.
Quick Reference Table
| Femtofarads per metre (fF/m) | Picofarads per centimetre (pF/cm) |
|---|---|
| 1 fF/m | 1 × 10-5 pF/cm |
| 2 fF/m | 2 × 10-5 pF/cm |
| 5 fF/m | 5 × 10-5 pF/cm |
| 10 fF/m | 0.0001 pF/cm |
| 25 fF/m | 0.00025 pF/cm |
| 50 fF/m | 0.0005 pF/cm |
| 100 fF/m | 0.001 pF/cm |