Convert Coulombs per cubic foot to Femtocoulombs per cubic metre
Convert Coulombs per cubic foot (C/ft³) to Femtocoulombs per cubic metre (fC/m³) instantly and accurately.
Conversion Formula
fC/m³ = C/ft³ × 3.531466672e+16
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.
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 foot (C/ft³) | Femtocoulombs per cubic metre (fC/m³) |
|---|---|
| 1 C/ft³ | 3.531 × 1016 fC/m³ |
| 2 C/ft³ | 7.063 × 1016 fC/m³ |
| 5 C/ft³ | 1.766 × 1017 fC/m³ |
| 10 C/ft³ | 3.531 × 1017 fC/m³ |
| 25 C/ft³ | 8.829 × 1017 fC/m³ |
| 50 C/ft³ | 1.766 × 1018 fC/m³ |
| 100 C/ft³ | 3.531 × 1018 fC/m³ |