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Convert Joule to Electronvolt.

Input the value of joules below to convert instantly to electronvolts with standard conversions, definitions, and equations.

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Value in Electronvolts = Value in Joules × 6.2415e+18 Multiply the value in joules by the conversion factor 6.2415e+18.

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How to Convert Joules to Electronvolts

To convert joule to electronvolt, we use the official conversion formulas. Below is the mathematical formula, plain-English explanation, and a worked example.

joule-to-electronvolt-formula.py

# Mathematical Formula

Value in Electronvolts = Value in Joules × 6.2415e+18

# Worked Example (5 J)

5 J × 6.2415e+18 = 31207545372303814656.0000 eV

What is a Joule?

Joule (J)

The base SI unit of energy, equal to work done by a force of one newton moving one meter.

What is a Electronvolt?

Electronvolt (eV)

Tiny energy unit standard in particle physics, kinetic energy gained by a single electron moving through a 1V potential.

Joule to Electronvolt Conversion Table

Joule (J)	Electronvolt (eV)
1 J	6.2415e+18 eV
2 J	1.2483e+19 eV
3 J	1.8725e+19 eV
5 J	3.1208e+19 eV
10 J	6.2415e+19 eV
15 J	9.3623e+19 eV
20 J	1.2483e+20 eV
25 J	1.5604e+20 eV
50 J	3.1208e+20 eV
100 J	6.2415e+20 eV
250 J	1.5604e+21 eV
500 J	3.1208e+21 eV
1000 J	6.2415e+21 eV

Electronvolt to Joule Conversion Table

Electronvolt (eV)	Joule (J)
1 eV	1.6022e-19 J
2 eV	3.2044e-19 J
3 eV	4.8065e-19 J
5 eV	8.0109e-19 J
10 eV	1.6022e-18 J
15 eV	2.4033e-18 J
20 eV	3.2044e-18 J
25 eV	4.0054e-18 J
50 eV	8.0109e-18 J
100 eV	1.6022e-17 J
250 eV	4.0054e-17 J
500 eV	8.0109e-17 J
1000 eV	1.6022e-16 J

Questions

Frequently Asked Questions

How do I convert joules to electronvolts?

Multiply the value in joules by the conversion factor 6.241509e+18. For example, to convert 5 joules to electronvolts: 5 × 6.241509e+18 = 31207545372303814656.0000 eV.

What is the conversion factor from joule to electronvolt?

The conversion factor is 6.241509e+18. One joule is equal to 6.241509e+18 electronvolts.

What is the reverse conversion from electronvolt to joule?

To convert electronvolts back to joules, multiply by 1.602177e-19 (or divide the value by 6.241509e+18). One electronvolt is equal to 1.602177e-19 joules.

How many Joules are in 1 Kilowatt-hour (kWh)?

There are exactly 3,600,000 Joules (or 3.6 Megajoules) in 1 kWh.

What is the difference between a calorie and a Calorie?

A lowercase calorie (cal) is a small metric unit (4.184 J). A capitalized Calorie (Cal) is a food calorie, which is actually a kilocalorie (1,000 small calories or 4,184 J).

Related Energy Conversions

Joule to Kilojoule Joule to Calorie (Gram) Joule to Kilocalorie (Food Cal) Joule to Watt-hour Joule to Kilowatt-hour Joule to BTU (British Thermal Unit)