# How to convert eV to Volts

## eV to volts calculation formula with elementary charge

V(V) = E(eV) / Q(e)

The voltage V in volts (V) is equal to the energy E in electron-volts (eV), divided 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,

V = eV / e
volt = electron-volt / elementary charge

For example:

Energy (E) = 650eV
Electric charge (Q) = 20e

Voltage (V) = 650eV / 20e = 32,5V

## eV to volts calculation formula with coulombs

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

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

So,

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

For example:

Energy (E) = 650eV
Electrical charge (Q) = 3C

Voltage (V) = 1.602176565×10-19 × 650eV / 3C = 3,47138×10-17V