Volts to Joules Calculator
Calculate energy in Joules from voltage and electrical charge.
Related Conversion Tools
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
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
How to Convert Volts to Joules
Basic Conversion Formula
J = V × C
J = Energy (joules)
V = Voltage (volts)
C = Charge (coulombs)
Practical Example
Given:
- Voltage = 3 volts
- Charge = 4 coulombs
Solution:
J = 3 V × 4 C = 12 J
Common Applications
Battery Systems
Calculate energy storage capacity
Power Supplies
Determine energy delivery
Circuit Analysis
Analyze energy transfer
Efficiency Studies
Measure energy consumption
Important Notes
- The conversion always requires knowing the charge (coulombs) involved
- Temperature can affect the accuracy of voltage measurements
- Consider energy losses in real-world applications
Volts to Joules Conversion Table
| Voltage (Volts) | Charge (Coulombs) | Energy (Joules) |
|---|---|---|
| 3 V | 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 |
