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1 J = 6.241509e18 eV
1 eV = 1.602176565e-19 J
If we want to convert 12 Joules in electron-volts, then we will proceed as following:
E(eV) = E(J) × 6.241509e18 eV = 12 × 6.241509e18 = 7.4898115765445e+19 eV
Definition of Joule provided by Dictionary.com
the standard unit of work or energy in the International System of Units (SI), equal to the work done by a force of one newton when its point of application moves through a distance of one meter in the direction of the force: equivalent to 10 7ergs and one watt-second.
Definition of electron-volt provided by Dictionary.com
a unit of energy, equal to the energy acquired by an electron accelerating through a potential difference of one volt and equivalent to 1.602 × 10 −19joules.
Joules and Electron-volts (eV) are two energy units. Joules and Electron-volts (eV) units are used in various fields of activity such as physics, chemistry and other industries. This calculator is useful both for those who’s working in these fields of activity but also for students who study energies as Joules and Electron-volts (eV) at school.
Our Joules to Electron-volts (eV) converter is especially designed to make your calculations fast. You just need to enter Joules value on the first box and the converter will do the rest for you and automatically convert Joules to Electron-volts (eV).
Also you have formula for converting Joules to Electron-volts (eV) if you need that in your calculations, but we recommend you to use the Joules to Electron-volts (eV) converter because is very fast and accurate for simple conversions.