Convert Coulombs per square metre to Millicoulombs per square metre

Convert Coulombs per square metre (C/m²) to Millicoulombs per square metre (mC/m²) instantly and accurately.

Coulombs per square metre (C/m²)
Millicoulombs per square metre (mC/m²)

Conversion Formula

mC/m² = C/m² × 1000

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.

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.

Quick Reference Table

Coulombs per square metre (C/m²)Millicoulombs per square metre (mC/m²)
1 C/m²1000 mC/m²
2 C/m²2000 mC/m²
5 C/m²5000 mC/m²
10 C/m²10000 mC/m²
25 C/m²25000 mC/m²
50 C/m²50000 mC/m²
100 C/m²100000 mC/m²

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