The volts to electron-volts calculator is a powerful tool for converting voltage values measured in volts to their corresponding energy values in electron-volts (eV). To use the calculator, simply enter the voltage value in volts and select the charge unit type from the dropdown menu. Depending on the charge unit type selected, users will need to enter the corresponding charge value in either elementary charge units or coulombs. Once all required fields are filled, click the “Calculate” button to obtain the corresponding energy value in eV. The “Reset” button can be used to clear all fields and start over.
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Volts to eV Calculation with Elementary Charge
The energy E in electron-volts (eV) is equal to the voltage V in volts (V), times the electric charge Q in elementary charge or proton/electron charge (e):
E(eV) = V(V) × Q(e)
Example.
An electrical circuit has a voltage supply of 120 Volts, and a charge flow of 50 electron charges. What is the energy in electron volts consumed by the circuit?
Solution.
E(eV) = V(V) × Q(e) = 120 V x 50 e = 6000 electron volts (eV)
Volts to eV Calculation with Coulombs
The energy E in electron-volts (eV) is equal to the voltage V in volts (V), times the electrical charge Q in coulombs (C) divided by 1.602176634×10−19 :
E(eV) = V(V) × Q(C) / 1.602176634×10−19
Example.
Calculate the energy consumed in an electric circuit where the charge flow was 10 coulombs with a voltage supply of 120 volts.
Solution.
E(eV) = 120 * 10 / (1.602176634×10−19) eV =4.68 * 1020eV = 7.489810889352915 * 1021 eV
