Elementary Charge to ESU of Charge Conversion

Convert between Elementary Charge and ESU of Charge quickly and accurately.

e
ESU

How to Convert Elementary Charge to ESU of Charge

Conversion Formula

1 e = 5E-10 ESU
1 ESU = 2084775595 e

Example

Convert 15 e to ESU:

15 e = 15 × 5E-10 ESU = 7E-9 ESU

Unit Information

Learn about the charge units you're converting between

Elementary Charge

e

Definition

Elementary charge is the electric charge carried by a single proton or electron, approximately 1.60217733E-19 coulombs. It is the fundamental unit of electric charge.

History/Origin

Elementary charge was first measured by Robert Millikan in his oil drop experiment (1909). It represents the smallest unit of electric charge in nature.

Current Use

Fundamental in quantum physics, particle physics, semiconductor physics, and calculations involving individual charged particles or quantum systems.

Multiplier

2E-19

Offset

0

ESU of Charge

ESU

Definition

ESU (Electrostatic Unit) of charge is a unit in the CGS electrostatic system, equal to approximately 3.335640951982E-10 coulombs. It represents the electrostatic unit of electric charge.

History/Origin

ESU of charge was part of the CGS electrostatic system of units, defined based on electrostatic principles and the force between charged particles.

Current Use

Historical unit rarely used in modern applications. The coulomb and other SI units have replaced the CGS electrostatic system in most scientific and engineering work.

Multiplier

3E-10

Offset

0

Elementary Charge to ESU of Charge Conversion Table

Elementary Charge [e] ESU of Charge [ESU]
1 e 5E-10 ESU
10 e 5E-9 ESU
25 e 1E-8 ESU
50 e 2E-8 ESU
100 e 5E-8 ESU
0 e 0E+0 ESU
-10 e -5E-9 ESU
-40 e -2E-8 ESU