Convert Femtocoulombs per cubic metre to Coulombs per cubic foot
Convert Femtocoulombs per cubic metre (fC/m³) to Coulombs per cubic foot (C/ft³) instantly and accurately.
Conversion Formula
C/ft³ = fC/m³ × 2.831684659e-17
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 foot
The coulomb per cubic foot (C/ft³) equals exactly 1/(0.3048)³ C/m³ ≈35.3147 C/m³, used in North American materials testing and industrial electrostatics standards. Electrostatic charge density in polymer foam packaging is quoted in C/ft³ in ASTM standards; ESD-protective bag and tray charge retention is rated in C/ft³ in US industrial specifications. 1 C/ft³ ≈35.315 C/m³.
Quick Reference Table
| Femtocoulombs per cubic metre (fC/m³) | Coulombs per cubic foot (C/ft³) |
|---|---|
| 1 fC/m³ | 2.832 × 10-17 C/ft³ |
| 2 fC/m³ | 5.663 × 10-17 C/ft³ |
| 5 fC/m³ | 1.416 × 10-16 C/ft³ |
| 10 fC/m³ | 2.832 × 10-16 C/ft³ |
| 25 fC/m³ | 7.079 × 10-16 C/ft³ |
| 50 fC/m³ | 1.416 × 10-15 C/ft³ |
| 100 fC/m³ | 2.832 × 10-15 C/ft³ |