Surface Charge Density Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: Choose a starting unit and a target unit, then enter a value. Common conversions: 1 C/m² = 0.0001 C/cm²; 1 C/m² = 1,000,000 µC/m²; 1 C/cm² = 10,000 C/m². This converter covers 5 surface charge density units.

Use the Surface Charge Density Converter

Surface Charge Density formula and what each symbol means

target = value × (factor of starting unit ÷ factor of target unit), where each factor is the unit value in C/m².

Symbols used in the formula
SymbolMeaning
valueThe number you want to convert
factorThe unit’s size expressed in the base unit (C/m²)

Surface Charge Density examples

C/m² to C/cm²

10 C/m² = 0.001 C/cm².

C/m² to µC/m²

10 C/m² = 10,000,000 µC/m².

C/cm² to C/m²

10 C/cm² = 100,000 C/m².

How to calculate Surface Charge Density step by step

  1. Choose the starting unit and the target unit.
  2. Enter your value.
  3. Read the converted value, plus the conversion factor in both directions.

Popular surface charge density conversions

How to read your Surface Charge Density result

Surface charge density is charge per unit area. The SI unit is coulomb per square metre. One C/cm² equals 10,000 C/m² because 1 m² is 10,000 cm².

UNITSYMBOLEQUALSVALUE OF 1 C/M²
Coulomb per square meterC/m²1 C/m² = 1 C/m²1 C/m²
Coulomb per square centimeterC/cm²1 C/cm² = 10,000 C/m²0.0001 C/cm²
Coulomb per square inchC/in²1 C/in² = 1,550.0031 C/m²0.00064516 C/in²
Microcoulomb per square meterµC/m²1 µC/m² = 0.000001 C/m²1,000,000 µC/m²
Nanocoulomb per square meternC/m²1 nC/m² = 1×10⁻⁹ C/m²1,000,000,000 nC/m²

Common mistakes when calculating Surface Charge Density

  • Forgetting to square the length factor: 1 cm² is 1×10⁻⁴ m².
  • Mixing surface and volume charge densities.
  • Mixing µC/m² and C/m².

Surface Charge Density FAQ

How many C/m² is 1 C/cm²?

1 C/cm² is 10,000 C/m².

How many C/m² is 1 µC/m²?

1×10⁻⁶ C/m².

Where is surface charge density used?

In capacitors, charged plates and electrostatics problems.

What is the base unit for surface charge density?

This converter uses coulomb per square meter (C/m²) as the common base unit: every value is first converted to it and then to the target unit.

How do I convert between two surface charge density units?

Choose the starting and target units, enter the value and read the result. By hand: convert to the base unit with the table, then divide by the target unit factor.

How many coulombs per square centimeter are in 1 coulomb per square meter?

1 C/m² = 0.0001 C/cm².

How many microcoulombs per square meter are in 1 coulomb per square meter?

1 C/m² = 1,000,000 µC/m².

How many coulombs per square meter are in 1 coulomb per square centimeter?

1 C/cm² = 10,000 C/m².

Which surface charge density units does this converter support?

It covers 5 units: coulomb per square meter (C/m²), coulomb per square centimeter (C/cm²), coulomb per square inch (C/in²), microcoulomb per square meter (µC/m²), nanocoulomb per square meter (nC/m²).

How accurate is the surface charge density converter?

Results are calculated at full double precision and shown to about 8 significant figures. Round the answer to the precision of your original measurement; a result cannot be more accurate than the number you started with.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)