## 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^{-17}V*