Statcoulombs (esu) to Coulombs Converter

Enter a value in statcoulombs (esu) to convert it to coulombs, nanocoulombs.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

The statcoulomb (esu) is the unit of electric charge in the CGS-Gaussian system, defined so that two equal charges of 1 statC placed 1 cm apart in vacuum repel each other with a force of exactly 1 dyne — it converts to the SI coulomb at 1 statC ≈ 3.33564×10⁻¹⁰ C, a factor directly tied to the speed of light (1 statC = 1/(2.99792458×10⁹) C).

Theoretical and astrophysicists still use Gaussian/CGS units, following the convention of classic textbooks like Jackson's Classical Electrodynamics, because Maxwell's equations take a more symmetric form without ε₀ and μ₀, so converting statcoulombs to coulombs is a routine step whenever their results need to interface with SI-based engineering or experimental data.

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