Coulombs to Volts Calculator
Calculate voltage from energy in Joules and electrical charge.
Coulombs to Volts 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 × 1018 elementary charges
- The basic unit for measuring electric charge quantity
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
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
How to Convert Coulombs to Volts
V = J ÷ C
V = Voltage (volts)
J = Energy (joules)
C = Charge (coulombs)
Practical Example
Given:
- Energy = 12 joules
- Charge = 4 coulombs
Solution:
V = 12 J ÷ 4 C = 3 V
Coulombs to Volts Conversion Table
| Charge (Coulombs) | Energy (Joules) | Voltage (Volts) |
|---|---|---|
| 4 C | 12 J | 3 V |
| 8 C | 24 J | 3 V |
| 12 C | 36 J | 3 V |
| 16 C | 48 J | 3 V |
| 20 C | 60 J | 3 V |
| 24 C | 72 J | 3 V |
| 28 C | 84 J | 3 V |
| 32 C | 96 J | 3 V |
| 36 C | 108 J | 3 V |
| 40 C | 120 J | 3 V |
