Surface Charge Density Converter
Convert between coulombs per square meter, microcoulombs per square centimeter, coulombs per square centimeter, coulombs per square inch and other surface charge density units.
Convert surface charge density
Result
Surface Charge Density units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the coulomb per square meter (C/m²).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Coulomb per square meter | C/m² | SI | Base unit |
| Coulomb per square centimeter | C/cm² | SI | = 10000 C/m² |
| Microcoulomb per square centimeter | µC/cm² | SI | = 0.01 C/m² |
| Coulomb per square inch | C/in² | US customary | ≈ 1550.0031 C/m² |
| Abcoulomb per square centimeter | abC/cm² | CGS | = 100000 C/m² |
Coulomb per square meter quick reference
| Coulomb per square meter | Microcoulomb per square centimeter |
|---|---|
| 1 C/m² | = 100 µC/cm² |
| 10 C/m² | = 1000 µC/cm² |
| 100 C/m² | = 10000 µC/cm² |
| 1000 C/m² | = 100000 µC/cm² |
Among the 5 surface charge density units on this page, the smallest is the microcoulomb per square centimeter (µC/cm²) and the largest is the abcoulomb per square centimeter (abC/cm²).
More surface charge density conversions
About surface charge density units
Surface charge density is the electric charge per unit area on a surface, such as a capacitor plate or a charged sheet. Its SI unit is the coulomb per square meter (C/m²).
Area factors are the square of length factors, so 1 C/cm² is 10,000 C/m², not 100. Materials science often uses µC/cm² for the polarization of ferroelectric materials; 1 µC/cm² is exactly 0.01 C/m².
Frequently asked questions
- How do I convert µC/cm² to C/m²?
- Divide by 100. One microcoulomb per square centimeter is exactly 0.01 C/m², so 25 µC/cm² is 0.25 C/m².
- Why does polarization use the same units as surface charge density?
- Electric polarization is dipole moment per volume, which works out to coulombs per square meter. At a surface it equals the bound charge per area.
- How many microcoulombs per square centimeter are in one coulomb per square meter?
- One coulomb per square meter = 100 µC/cm² (microcoulombs per square centimeter).