Coulomb to Elementary Charge Conversion

Convert between Coulomb and Elementary Charge quickly and accurately.

From Coulomb

To Elementary Charge

How to Convert Coulomb to Elementary Charge

Conversion Formula

1 C = 6E+18 e

1 e = 2E-19 C

Example

Convert 15 C to e:

15 C = 15 × 6E+18 e = 9E+19 e

Unit Information

Learn about the charge units you're converting between

Coulomb

Definition

The coulomb is the SI base unit of electric charge, representing the amount of electric charge transported by a constant current of one ampere flowing for one second. It is named after French physicist Charles-Augustin de Coulomb.

History/Origin

The coulomb was first defined in 1881 by the International Electrical Congress and became part of the SI system in 1960. It honors Charles-Augustin de Coulomb (1736-1806), who formulated Coulomb's law describing the electrostatic force between charged particles.

Current Use

Coulomb is the fundamental unit for measuring electric charge in physics, engineering, and electronics. It's used in calculations involving capacitance, electric fields, and electromagnetic phenomena.

Multiplier

Offset

Elementary Charge

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