⚛️Electron Volts to Joules Converter

Convert electron volts to joules and joules to electron volts.

Electron Volts (eV)

Joules (J)

1 eV = 1.602 × 10⁻¹⁹ joules

About Electron Volts to Joules Converter

Convert between electron volts (eV) and joules (J). One electron volt equals approximately 1.602 × 10⁻¹⁹ joules. The electron volt is the standard energy unit in atomic and particle physics, representing the kinetic energy gained by a single electron accelerated through one volt of electric potential difference.

How to Use Electron Volts to Joules Converter

1
Enter your value
Type an energy value in either the electron volts or joules field.
2
See the result
The result appears in scientific notation for precision.
3
Copy the result
Click copy to use the converted energy in your calculation.

Common Use Cases

Particle physics and nuclear energy calculations
Semiconductor and photon energy analysis
Astrophysics radiation energy conversion
Quantum mechanics course calculations

Frequently Asked Questions

How many joules is one electron volt?

One electron volt equals approximately 1.602 × 10⁻¹⁹ joules.

Why is eV used in particle physics?

The electron volt is a natural unit for atomic and subatomic physics because the energies involved are extremely small. Using joules would require unwieldy scientific notation for most particle energy values.

What is 1 MeV in joules?

1 MeV (mega-electron volt) = 1,000,000 eV = approximately 1.602 × 10⁻¹³ joules.