Joules to Volts Calculator
Use this free Joules to Volts calculator to convert energy (J) into voltage (V) using charge (C). Ideal for physics and electronics applications. Quick and accurate.

Quick Intro: Convert Joules to Volts
The relationship between energy, charge, and voltage is essential in electronics and physics. This calculator helps you convert joules to volts using the formula V = J / C, where J is energy and C is electric charge in coulombs.
Formula to Convert Joules to Volts
- V = J ÷ C
Example: 10 joules / 2 coulombs = 5 volts
Joules to Volts Calculator Overview
Convert energy in Joules (J) to electric potential in Volts (V) using this free calculator. Just input the energy and electric charge to find the voltage.
Sample Joules to Volts Canversion Table
| Energy (Joules) | Charge (Coulombs) | Voltage (Volts) |
|---|---|---|
| 10 | 2 | 5 |
| 20 | 4 | 5 |
Frequently Asked Questions - Joules to Volts Calculator:
How do I convert Joules to Volts?
Use the formula V = J ÷ C, where J is energy in joules and C is charge in coulombs.
What is the formula for energy to voltage?
V = J / C
What unit is used for charge?
Coulombs (C)
Can I use this for capacitors?
Yes, it's useful for energy stored in capacitors.
What is a volt?
Volt is the unit of electric potential or voltage.
What is a joule?
A joule is a unit of energy.
Can voltage be calculated without charge?
No, charge (C) is required to compute voltage from energy.
Is this calculator free?
Yes, it's a free online tool.
Where is this used?
Common in physics, electronics, and engineering.
What’s the difference between J and V?
Joules measure energy; volts measure electric potential.
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