eV → J
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
J = eV × 1.602e-19
About this calculator
The eV to J converter is a useful tool for converting electronvolts (eV) to joules (J). This is particularly useful in physics and engineering contexts where working with different energy measurement units is necessary.
The underlying formula for this conversion is simple: J = eV × 1.602e-19. As this formula is a constant factor, it's easy to perform the conversion manually, but the online converter here available makes it easier, especially for more complex calculations.
Here, you can quickly and accurately convert eV to J. Also, be mindful of the time unit, as the result depends on the time unit chosen.
Use this tool when you need to convert energy from electronvolts to joules in physics, engineering, or science contexts.
Frequently asked questions
What is an electronvolt?
The electronvolt (eV) is a unit of energy that represents the energy required to remove an electron from an atom or a substance. It's particularly useful in physics and engineering contexts.
Why do we need to convert eV to J?
Converting eV to J is necessary because scientists and engineers need to work with different energy measurement units in physics, engineering, or science contexts. Also, the J unit is more common in many applications.
How can I use this tool?
Just enter the eV value you want to convert and select the correct time unit. Then, click 'Convert' to get the result in J.
What is the factor 1.602e-19?
The factor 1.602e-19 is a constant that represents the relationship between the eV and J units. It's used in the conversion formula J = eV × 1.602e-19.
Can I convert other types of units with this tool?
No, this tool is specific to converting eV to J. If you need to convert other units, check if there are available tools.