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Convert joules to electronvolts

Convert joules (J) to electronvolts (eV). 1 J = 6.24151 × 10¹⁸ eV, and 1 eV = 1.60218 × 10⁻¹⁹ J.

1 J = 6.24151 × 10¹⁸ eV

Joules to Electronvolts formula

eV = J × 6.241509074 × 10¹⁸

Multiply the number of joules by 6.241509074 × 10¹⁸.

Example: To convert 1 J to electronvolts: 1 × 6.241509074 × 10¹⁸ = 6.24151 × 10¹⁸ eV.

Quick answers

What is 1 J in electronvolts?
1 J = 6.24151 × 10¹⁸ eV
What is 1,000 J in electronvolts?
1,000 J = 6.24151 × 10²¹ eV

Joules to Electronvolts conversion table

Electronvolts to Joules table
joules (J)electronvolts (eV)
1 J6.24151 × 10¹⁸ eV
10 J6.24151 × 10¹⁹ eV
100 J6.24151 × 10²⁰ eV
1,000 J6.24151 × 10²¹ eV
4,184 J2.61145 × 10²² eV
10,000 J6.24151 × 10²² eV
100,000 J6.24151 × 10²³ eV
1,000,000 J6.24151 × 10²⁴ eV
3,600,000 J2.24694 × 10²⁵ eV

Frequently asked questions

How many electronvolts are in a joule?

There are 6.24151 × 10¹⁸ electronvolts in a joule (1 J = 6.24151 × 10¹⁸ eV).

How do I convert joules to electronvolts?

Multiply the number of joules by 6.241509074 × 10¹⁸. To convert 1 J to electronvolts: 1 × 6.241509074 × 10¹⁸ = 6.24151 × 10¹⁸ eV.

Is the Joules to Electronvolts conversion exact?

Yes. Both units are defined exactly, so 1 joule is exactly 6.24150907446 × 10¹⁸ electronvolts. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1 J in electronvolts?

1 J = 6.24151 × 10¹⁸ eV.

How do I convert electronvolts back to joules?

Use the reverse relationship: 1 eV = 1.60218 × 10⁻¹⁹ J. The Electronvolts to Joules page has a converter and a full table.

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