Convert Femtocoulombs per square metre to Coulombs per square foot
Convert Femtocoulombs per square metre (fC/m²) to Coulombs per square foot (C/ft²) instantly and accurately.
Conversion Formula
C/ft² = fC/m² × 9.290304000e-17
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.
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.
Quick Reference Table
| Femtocoulombs per square metre (fC/m²) | Coulombs per square foot (C/ft²) |
|---|---|
| 1 fC/m² | 9.29 × 10-17 C/ft² |
| 2 fC/m² | 1.858 × 10-16 C/ft² |
| 5 fC/m² | 4.645 × 10-16 C/ft² |
| 10 fC/m² | 9.29 × 10-16 C/ft² |
| 25 fC/m² | 2.323 × 10-15 C/ft² |
| 50 fC/m² | 4.645 × 10-15 C/ft² |
| 100 fC/m² | 9.29 × 10-15 C/ft² |