Convert Millicoulombs per square metre to Coulombs per square metre
Convert Millicoulombs per square metre (mC/m²) to Coulombs per square metre (C/m²) instantly and accurately.
Conversion Formula
C/m² = mC/m² × 0.001
About Millicoulombs per square metre
The millicoulomb per square metre (mC/m²) equals 10⁻³ C/m², the scale for triboelectric charging of common plastics and electrostatic spray-coating processes. Rubbed polytetrafluoroethylene (PTFE) accumulates 1-10 mC/m²; electrostatic powder coating guns deposit 1-5 mC/m² on grounded work pieces; thundercloud base charge density before lightning is 1-5 mC/m². 1 mC/m² = 10⁻³ C/m² = 10³ µC/m².
About Coulombs per square metre
The coulomb per square metre (C/m²) is the SI coherent unit of surface charge density, equal to 1 A·s·m⁻². A parallel-plate capacitor with 1 C/m² on each plate produces a gap field of 1/ε₀ ≈ 113 GV/m; realistic capacitor plate densities are 10-100 µC/m²; charge density on a sphere at electrical breakdown of air is about 27 µC/m². 1 C/m² = 10³ mC/m² = 10⁶ µC/m².
Quick Reference Table
| Millicoulombs per square metre (mC/m²) | Coulombs per square metre (C/m²) |
|---|---|
| 1 mC/m² | 0.001 C/m² |
| 2 mC/m² | 0.002 C/m² |
| 5 mC/m² | 0.005 C/m² |
| 10 mC/m² | 0.01 C/m² |
| 25 mC/m² | 0.025 C/m² |
| 50 mC/m² | 0.05 C/m² |
| 100 mC/m² | 0.1 C/m² |