How to convert Volts to eV

Volts to eV calculation formula with elementary charge

E(eV) = V(V) × Q(e)

The energy E in electron-volts (eV) is equal to the voltage V in volts (V), multiplied by the electric charge Q in elementary charge (e).

The elementary charge (symbol e) is the electric charge carried by a single proton, or equivalently, the magnitude of the electric charge carried by a single electron, which has charge −e.

So,

eV = V × e
electronvolt = volt × elementary charge

For example:

Voltage (V) = 25V
Electric charge (Q) = 30e

Energy (E) = 25V x 30e = 750eV

Volts to eV calculation formula with coulombs

E(eV) = V(V) × Q(C) / 1.602176565×10-19

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The energy E in electron-volts (eV) is equal to the voltage V in volts (V), multiplied by the electrical charge Q in coulombs (C), divided by 1.602176565×10-19.

So,

electronvolt = volt × coulomb / 1.602176565×10-19
eV = V × C / 1.602176565×10-19

For example:

Voltage (V) = 25V
Electrical charge (Q) = 3C

Energy (E) = 25V x 3C / 1.602176565×10-19 = 4,68113 × 1020eV

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