Convert Farads per metre to Picofarads per centimetre
Convert Farads per metre (F/m) to Picofarads per centimetre (pF/cm) instantly and accurately.
Conversion Formula
pF/cm = F/m × 10000000000
About Farads per metre
The farad per metre (F/m) is the SI coherent unit of permittivity. It is an extremely large unit in practice - the vacuum permittivity ε₀ is only 8.854 × 10⁻¹² F/m. Permittivities in F/m arise in models of quasi-metallic electrolytes and ultralow-frequency behaviour of plasma where ionic screening raises the effective dielectric constant enormously. 1 F/m = 10³ mF/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
| Farads per metre (F/m) | Picofarads per centimetre (pF/cm) |
|---|---|
| 1 F/m | 1 × 1010 pF/cm |
| 2 F/m | 2 × 1010 pF/cm |
| 5 F/m | 5 × 1010 pF/cm |
| 10 F/m | 1 × 1011 pF/cm |
| 25 F/m | 2.5 × 1011 pF/cm |
| 50 F/m | 5 × 1011 pF/cm |
| 100 F/m | 1 × 1012 pF/cm |