Electronvolt to Joule Converter

Convert Electronvolt to Joule instantly — live results with exact conversion factors.

From

1.602176634e-19 J

1 electronvolt = 1.6021766e-19 joules. To convert eV to J, multiply by 1.6021766e-19.

Quick Reference Table

Electronvolt (eV)	Joule (J)
1	1.602176634e-19
2	3.204353268e-19
5	8.01088317e-19
10	1.602176634e-18
20	3.204353268e-18
50	8.01088317e-18
100	1.602176634e-17
250	4.005441585e-17
500	8.01088317e-17
1000	1.602176634e-16

Formula

Convert Electronvolt (eV) to Joule (J) using the relationship:

J = eV × 1.6021766e-19

How to Convert

Take the value in electronvolts (eV).
Multiply it by 1.6021766e-19 (the conversion factor from eV to J).
The result is the equivalent value in joules (J).
Example: 1 eV = 1.602176634e-19 J.

Reverse Conversion

Need it the other direction? Joule to Electronvolt conversion.

All Energy Conversions

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FAQ

▸ How many joules are in 1 electronvolt?

1 Electronvolt equals 1.602176634e-19 joules. Multiply by 1.6021766e-19 to convert eV to J.

▸ What is the formula to convert electronvolt to joule?

Multiply the value in electronvolts by 1.6021766e-19 to get joules. Formula: J = eV × 1.6021766e-19.

▸ How do I convert electronvolts to joules easily?

Enter your value in the converter at the top of this page — the joules result updates live as you type. You can also multiply by 1.6021766e-19 directly.

Answer