Joules To Electron Volts Conversion


1 J = 6.241509074461e+18 eV

Want to convert from electron volts to joules instead?

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How to convert joules to electron volts (J to eV)

The formula for converting joules to electron volts is: eV = J × 6241509074461000000. To calculate the joule value in electron volts first substitute the joule value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 joule in electron volts we follow these steps:

eV = J × 6241509074461000000

eV = 1 × 6241509074461000000

eV = 6241509074461000000

In other words, 1 joule is equal to 6241509074461000000 electron volts.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 5 joules to electron volts is:

  1. Understand the conversion formula: eV = J × 6241509074461000000
  2. Substitute the required value. In this case we substitute 5 for J so the formula becomes: eV = 5 × 6241509074461000000
  3. Calculate the result using the provided values. In our example the result is: 5 × 6241509074461000000 = 3.1207545372305e+19 eV

In summary, 5 joules is equal to 3.1207545372305e+19 electron volts.

Converting electron volts to joules

In order to convert the other way around i.e. electron volts to joules, you would use the following formula: J = eV × 1.602176487e-19. To convert electron volts to joules first substitute the electron volt value into the above formula, and then execute the calculation. If we wanted to calculate 1 electron volt in joules we follow these steps:

J = eV × 1.602176487e-19

J = 1 × 1.602176487e-19

J = 0.0000000000000000001602176487

Or in other words, 1 electron volt is equal to 0.0000000000000000001602176487 joules.

Conversion Unit Definitions

What is a Joule?

A joule (J) is the standard unit of energy in the International System of Units (SI). It is defined as the amount of work done when a force of one newton is applied over a distance of one meter in the direction of the force. In other words, one joule is equal to the energy transferred when one watt of power is dissipated for one second.
Mathematically, 1 joule is equal to 1 N × 1 m, or 1 kg × m2/s2 in terms of mass, length, and time.
Joules are a versatile unit of measurement used not only in physics but also in various fields including engineering, chemistry, and biology to quantify energy, work, and heat. For example, it's commonly used to express the energy content of foods, the capacity of batteries, and the energy output of electronic devices.

What is a Electron Volt?

An electron volt (eV) is a unit of energy used in physics and atomic sciences. It is the amount of kinetic energy gained or lost by an electron when it is accelerated through an electric potential difference of one volt.
Mathematically, one electron volt is equal to 1.60218 × 10−19 joules. The electron volt is a very small unit of energy, but it is convenient for describing atomic and subatomic processes because the energies involved at the atomic and molecular scale are typically quite small.
In particle physics and quantum mechanics, energies of particles and radiation are often expressed in electron volts. For example, the rest mass energy of an electron is approximately 511,000 eV, and the energy of visible light photons is typically in the range of 1.65 − 3.1 eV.

Joules To Electron Volts Conversion Table

Below is a lookup table showing common joules to electron volts conversion values.

Joules (J)Electron Volt (eV)
1 J6.241509074461e+18 eV
2 J1.2483018148922e+19 eV
3 J1.8724527223383e+19 eV
4 J2.4966036297844e+19 eV
5 J3.1207545372305e+19 eV
6 J3.7449054446766e+19 eV
7 J4.3690563521227e+19 eV
8 J4.9932072595688e+19 eV
9 J5.6173581670149e+19 eV
10 J6.241509074461e+19 eV
11 J6.8656599819071e+19 eV
12 J7.4898108893532e+19 eV
13 J8.1139617967993e+19 eV

Other Common Joule Conversions

Below is a table of common conversions from joules to other energy units.

1 joule in ergs10000000 erg
1 joule in kilojoules0.001 kJ
1 joule in megajoules0.000001 MJ
1 joule in gigajoules0.000000001 GJ
1 joule in calories0.2388458966275 cal
1 joule in kilocalories0.0002388458966275 kcal
1 joule in watt hours0.00027777777777778 Wh
1 joule in kilowatt hours0.00000027777777777778 kWh
1 joule in megawatt hours0.00000000027777777777778 MWh
1 joule in watt seconds1 Ws
1 joule in btus0.00094708628903179 Btu
1 joule in therms0.0000000094708628903179 thm
1 joule in quads0.00000000000000000094708628903179 Q
1 joule in kilo electron volts6241509074461000 keV
1 joule in mega electron volts6241509074461 MeV