Coulomb to Franklin Conversion

Convert between Coulomb and Franklin quickly and accurately.

From Coulomb

To Franklin

How to Convert Coulomb to Franklin

Conversion Formula

1 C = 2997924579.983 Fr

1 Fr = 3E-10 C

Example

Convert 15 C to Fr:

15 C = 15 × 2997924579.983 Fr = 44968868699.751 Fr

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

Franklin

Definition

Franklin is a unit of electric charge in the CGS electrostatic system, equal to approximately 3.335640951982E-10 coulombs. It is named after Benjamin Franklin.

History/Origin

Franklin was named after Benjamin Franklin (1706-1790), who conducted pioneering experiments with electricity. It was defined in the CGS electrostatic system.

Current Use

Rarely used in modern applications, mainly in historical contexts and some specialized electrostatic calculations. The coulomb has replaced it in most scientific work.

Multiplier

3E-10

Offset