Convert Coulombs per square foot to Femtocoulombs per square metre
Convert Coulombs per square foot (C/ft²) to Femtocoulombs per square metre (fC/m²) instantly and accurately.
Conversion Formula
fC/m² = C/ft² × 1.076391042e+16
About Coulombs per square foot
The coulomb per square foot (C/ft²) equals exactly 1/(0.3048)² C/m² ≈ 10.7639 C/m², used in North American electrostatic specifications for insulating flooring, workbench surfaces, and static-dissipative materials. ANSI/ESD standards specify electrostatic charge decay and surface charge limits in C/ft²; antistatic mat and flooring performance is rated in C/ft². 1 C/ft² ≈ 10.764 C/m².
About Femtocoulombs per square metre
The femtocoulomb per square metre (fC/m²) equals 10⁻¹⁵ C/m², arising in scanning Kelvin probe measurements of oxide fixed charge. MOS interface state densities of 10¹ charges/cm² correspond to about 0.16 fC/m²; fixed charge in high-k gate dielectrics and SiO₂/Si interfaces is typically 10-100 fC/m². 1 fC/m² = 10⁻¹⁵ C/m² = 10⁻³ pC/m².
Quick Reference Table
| Coulombs per square foot (C/ft²) | Femtocoulombs per square metre (fC/m²) |
|---|---|
| 1 C/ft² | 1.076 × 1016 fC/m² |
| 2 C/ft² | 2.153 × 1016 fC/m² |
| 5 C/ft² | 5.382 × 1016 fC/m² |
| 10 C/ft² | 1.076 × 1017 fC/m² |
| 25 C/ft² | 2.691 × 1017 fC/m² |
| 50 C/ft² | 5.382 × 1017 fC/m² |
| 100 C/ft² | 1.076 × 1018 fC/m² |