Quickly convert joules to electron-volts and vice versa with Examples.com. Enter your data for fast and reliable energy conversions.

## J to eV

Formula: Energy in Electronvolts (eV) = Energy in Joules (J) / 1.60218e-19

#### Electronvolt :

JoulesElectronvolts
16241495961752113000

## eV to J

Formula: Energy in Joules (J) = Energy in Electronvolts (eV) x 1.60218e-19

#### Joule :

ElectronvoltsJoules
11.60218e-19

## Conversion Factors:

• Joules to Electron-Volts: 1 joule = 6.242e+18 electron-volts
• Electron-Volts to Joules: 1 electron-volt = 1.602e-19 joules

## How to Convert Joules to Electron-Volts:

To convert joules to electron-volts, divide the number of joules by 1.602e-19.

Electron-Volts = Joules/1.602e−19

#### Example:

Convert 3e-18 joules to electron-volts.

Electron-Volts = 3e−18/1.602e−19 = 18.73 eV

## How to Convert Electron-Volts to Joules:

To convert electron-volts to joules, multiply the number of electron-volts by 1.602e-19.

Joules = Electron-Volts×1.602e−19

#### Example:

Convert 3e+19 electron-volts to joules.

Joules = 3e+19×1.602e−19 = 4.806 J

## 1. Solved Examples on Converting Joules to Electron-Volts

### Example 1:

Convert 1 joule to electron-volts.

Electron-Volts = 11.602e−19 = 6.242e+18 eV

### Example 2:

Convert 2 joules to electron-volts.

Electron-Volts = 21.602e−19 = 1.2484e+19 eV

### Example 3:

Convert 0.5 joules to electron-volts.

Electron-Volts = 0.51.602e−19 = 3.121e+18 eV

### Example 4:

Convert 3 joules to electron-volts.

Electron-Volts = 31.602e−19 = 1.8726e+19 eV

### Example 5:

Convert 0.25 joules to electron-volts.

Electron-Volts = 0.251.602e−19 = 1.561e+18 eV

## 2. Solved Examples on Converting Electron-Volts to Joules

### Example 1:

Convert 1 electron-volt to joules.

Joules = 1×1.602e−19 = 1.602e−19 J

### Example 2:

Convert 5 electron-volts to joules.

Joules = 5×1.602e−19 = 8.01e−19 J

### Example 3:

Convert 10 electron-volts to joules.

Joules = 10×1.602e−19 = 1.602e−18 J

### Example 4:

Convert 20 electron-volts to joules.

Joules = 20×1.602e−19 = 3.204e−18 J

### Example 5:

Convert 50 electron-volts to joules.

Joules = 50×1.602e−19 = 8.01e−18 J

## Can I use online tools to convert joules to electron-volts?

Yes, many online calculators and tools are available to easily convert joules to electron-volts and vice versa.

## What are some common applications of electron-volts?

Electron-volts are commonly used to measure the energy levels of electrons in atoms, the energy of particles in accelerators, and the energy of photons in spectroscopy.

## How do I convert small amounts of energy from joules to electron-volts?

To convert small amounts of energy from joules to electron-volts, use the same conversion factor. For example, 1e-19 joules is equal to approximately 0.6242 electron-volts.

## Why do we need to convert joules to electron-volts?

Converting joules to electron-volts is useful in atomic and particle physics, where energy levels are often expressed in electron-volts.

## Is 1 joule equal to 1 electron-volt?

No, 1 joule is much larger than 1 electron-volt. 1 joule equals 6.242e+18 electron-volts.