Convert Coulombs per cubic metre to Femtocoulombs per cubic metre
Convert Coulombs per cubic metre (C/m³) to Femtocoulombs per cubic metre (fC/m³) instantly and accurately.
Conversion Formula
fC/m³ = C/m³ × 1000000000000000
About Coulombs per cubic metre
The coulomb per cubic metre (C/m³) is the SI coherent unit of volume charge density, equal to 1 A·s·m⁻³. The depletion region of a silicon pn junction doped at ~6×10¹⁸ /m³ carries ρ ≈1 C/m³; the lightning return-stroke channel has net charge density of several C/m³; electrolytic capacitor dielectric space charge is in the C/m³ range. 1 C/m³ = 10³ mC/m³.
About Femtocoulombs per cubic metre
The femtocoulomb per cubic metre (fC/m³) equals 10⁻¹⁵ C/m³, the scale for charge density in the interstellar medium. The diffuse interstellar medium has electron density ~3×10⁴ /m³, giving charge density ≈5 fC/m³; radiation belt proton charge density in the inner Van Allen belt is in the fC/m³ range. 1 fC/m³ = 10⁻¹⁵ C/m³ = 10⁻³ pC/m³.
Quick Reference Table
| Coulombs per cubic metre (C/m³) | Femtocoulombs per cubic metre (fC/m³) |
|---|---|
| 1 C/m³ | 1 × 1015 fC/m³ |
| 2 C/m³ | 2 × 1015 fC/m³ |
| 5 C/m³ | 5 × 1015 fC/m³ |
| 10 C/m³ | 1 × 1016 fC/m³ |
| 25 C/m³ | 2.5 × 1016 fC/m³ |
| 50 C/m³ | 5 × 1016 fC/m³ |
| 100 C/m³ | 1 × 1017 fC/m³ |