Coulombs to Volts Calculator
Calculate voltage from energy in Joules and electrical charge.
Related Conversion Tools
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
Basic Conversion Formula
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
Common Applications
Battery Systems
Calculate voltage requirements for energy storage
Power Supplies
Determine voltage output based on energy and charge
Circuit Design
Analyze voltage levels in electrical circuits
Energy Efficiency
Measure voltage for optimizing energy consumption
Important Notes
- The conversion requires knowing both energy (joules) and charge (coulombs)
- Voltage can vary based on the system and conditions
- Consider potential losses in practical applications
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 |
