Convert Electronvolts to Joules

Enter the energy in electronvolts below to get the value converted to joules.

Results in Joules:
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1 eV = 1.6022E-19 J

How to Convert Electronvolts to Joules

To convert an electronvolt measurement to a joule measurement, multiply the energy by the conversion ratio. One electronvolt is equal to 1.6022E-19 joules, so use this simple formula to convert:

joules = electronvolts × 1.6022E-19

The energy in joules is equal to the electronvolts multiplied by 1.6022E-19.

For example, here's how to convert 5 electronvolts to joules using the formula above.
5 eV = (5 × 1.6022E-19) = 8.0109E-19 J

Electronvolts and joules are both units used to measure energy. Keep reading to learn more about each unit of measure.


The electronvolt is a unit of energy used in physics, most commonly in electrostatic particle accelerator sciences.

Electronvolts can be abbreviated as eV, for example 1 electronvolt can be written as 1 eV.

Energy in electronvolts can be expressed using the following formula: E = qV

The energy E in electronvolts is equal to the electric charge q in elementary charge times the potential difference V in volts.


The joule is the energy equal to the force on an object of one newton at a distance of one meter. One joule is equal to the heat energy dissipated by the current of one ampere through one ohm of resistance for one second.

One joule is also equal to the energy needed to move an electric charge of one coulomb through a potential difference of one volt. In addition, one joule is also equal to the one watt-second.

The joule is the SI derived unit for energy in the metric system. Joules can be abbreviated as J, for example 1 joule can be written as 1 J.

Electronvolt Measurements and Equivalent Joule Conversions

Common electronvolt values converted to the equivalent joule value
Electronvolts Joules
1 eV 0.00000000000000000016022 J
2 eV 0.00000000000000000032044 J
3 eV 0.00000000000000000048065 J
4 eV 0.00000000000000000064087 J
5 eV 0.00000000000000000080109 J
6 eV 0.00000000000000000096131 J
7 eV 0.0000000000000000011215 J
8 eV 0.0000000000000000012817 J
9 eV 0.000000000000000001442 J
10 eV 0.0000000000000000016022 J
11 eV 0.0000000000000000017624 J
12 eV 0.0000000000000000019226 J
13 eV 0.0000000000000000020828 J
14 eV 0.000000000000000002243 J
15 eV 0.0000000000000000024033 J
16 eV 0.0000000000000000025635 J
17 eV 0.0000000000000000027237 J
18 eV 0.0000000000000000028839 J
19 eV 0.0000000000000000030441 J
20 eV 0.0000000000000000032044 J
21 eV 0.0000000000000000033646 J
22 eV 0.0000000000000000035248 J
23 eV 0.000000000000000003685 J
24 eV 0.0000000000000000038452 J
25 eV 0.0000000000000000040054 J
26 eV 0.0000000000000000041657 J
27 eV 0.0000000000000000043259 J
28 eV 0.0000000000000000044861 J
29 eV 0.0000000000000000046463 J
30 eV 0.0000000000000000048065 J
31 eV 0.0000000000000000049667 J
32 eV 0.000000000000000005127 J
33 eV 0.0000000000000000052872 J
34 eV 0.0000000000000000054474 J
35 eV 0.0000000000000000056076 J
36 eV 0.0000000000000000057678 J
37 eV 0.0000000000000000059281 J
38 eV 0.0000000000000000060883 J
39 eV 0.0000000000000000062485 J
40 eV 0.0000000000000000064087 J

More Electronvolt Energy Conversions

Convert to Kilojoules
1 eV is equal to 1.6022E-22 kilojoules
Convert to Megajoules
1 eV is equal to 1.6022E-25 megajoules
Convert to Gigajoules
1 eV is equal to 1.6022E-28 gigajoules
Convert to Calories
1 eV is equal to 3.8293E-20 calories
Convert to Kilocalories
1 eV is equal to 3.8293E-23 kilocalories
Convert to Megacalories
1 eV is equal to 3.8293E-26 megacalories
Watts x Time
Convert to Watt-hours
1 eV is equal to 4.4505E-23 watt-hours
Convert to Kilowatt-hours
1 eV is equal to 4.4505E-26 kilowatt-hours
Convert to Megawatt-hours
1 eV is equal to 4.4505E-29 megawatt-hours
Convert to Watt-seconds
1 eV is equal to 1.6022E-19 watt-seconds
Thermal Units
Convert to British Thermal Units
1 eV is equal to 1.5186E-22 british thermal units
Convert to Million BTU
1 eV is equal to 1.5186E-28 million BTU
Convert to Therms
1 eV is equal to 1.5186E-27 therms
Convert to Quads
1 eV is equal to 1.5186E-37 quads
Convert to Kiloelectronvolts
1 eV is equal to 0.001 kiloelectronvolts
Convert to Megaelectronvolts
1 eV is equal to 1.0E-6 megaelectronvolts