Coulombs to Joules Calculator

Coulombs to Joules Calculator

Calculate energy in Joules from electrical charge and voltage.

Coulombs to Joules Conversion

Coulomb (C)

A coulomb is the SI unit of electric charge, representing:

  • The charge transported by a one-ampere current in one second
  • Approximately 6.242 ร— 1018 elementary charges
  • The basic unit for measuring electric charge quantity

Joule (J)

A joule is the SI unit of energy, work, and heat. It can be understood as:

  • The energy transferred when applying a force of one newton over one meter
  • The energy dissipated when one ampere passes through a one-ohm resistor for one second
  • The work done to produce one watt of power for one second

Volt (V)

A volt is the SI unit of electric potential difference or electromotive force. It represents:

  • The energy per unit charge
  • One joule of energy per coulomb of charge
  • The potential difference that would drive one ampere of current against one ohm resistance

Formula

J = V ร— C
J = Energy (joules)
V = Voltage (volts)
C = Charge (coulombs)

Practical Example

Given:

  • Voltage = 3 volts
  • Charge = 4 coulombs

Solution:

J = 3 V ร— 4 C = 12 J

Coulombs to Joules Conversion Table

Charge (Coulombs) Voltage (Volts) Energy (Joules)
4 C 3 V 12 J
8 C 3 V 24 J
12 C 3 V 36 J
16 C 3 V 48 J
20 C 3 V 60 J
24 C 3 V 72 J
28 C 3 V 84 J
32 C 3 V 96 J
36 C 3 V 108 J
40 C 3 V 120 J

Author

  • Manish Kumar

    Manish holds a B.Tech in Electrical and Electronics Engineering (EEE) and an M.Tech in Power Systems, with over 10 years of experience in Metro Rail Systems, specializing in advanced rail infrastructure. He is also a NASM-certified fitness and nutrition coach with more than a decade of experience in weightlifting and fat loss coaching. With expertise in gym-based training, lifting techniques, and biomechanics, Manish combines his technical mindset with his passion for fitness.

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