Convert Femtocoulombs per cubic metre to Coulombs per cubic metre
Convert Femtocoulombs per cubic metre (fC/m³) to Coulombs per cubic metre (C/m³) instantly and accurately.
Conversion Formula
C/m³ = fC/m³ × 1.000000000e-15
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.
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.
Quick Reference Table
| Femtocoulombs per cubic metre (fC/m³) | Coulombs per cubic metre (C/m³) |
|---|---|
| 1 fC/m³ | 1 × 10-15 C/m³ |
| 2 fC/m³ | 2 × 10-15 C/m³ |
| 5 fC/m³ | 5 × 10-15 C/m³ |
| 10 fC/m³ | 1 × 10-14 C/m³ |
| 25 fC/m³ | 2.5 × 10-14 C/m³ |
| 50 fC/m³ | 5 × 10-14 C/m³ |
| 100 fC/m³ | 1 × 10-13 C/m³ |