eV to Volts Calculator

Enter your energy in electronvolts (eV), select your charge unit type, and input the charge value to calculate the resulting voltage (V) — the tool also shows you the exact formula used so you always know what's happening under the hood.

eV

Energy value in electron-volts

Charge value in selected unit

Results

Voltage

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Formula Used

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Frequently Asked Questions

How do you convert electron-volts to volts?

To convert eV to volts, divide the energy in electron-volts by the charge. For elementary charge: V = E(eV) / Q(e). For coulombs: V = 1.602176634×10⁻¹⁹ × E(eV) / Q(C).

What is the formula for eV to volts conversion?

The formula depends on charge units. With elementary charge: V(V) = E(eV) / Q(e). With coulombs: V(V) = 1.602176634×10⁻¹⁹ × E(eV) / Q(C), where 1.602176634×10⁻¹⁹ is the elementary charge constant.

What is an electron-volt (eV)?

An electron-volt is a unit of energy equal to the energy gained by an electron when accelerated through a potential difference of one volt. It equals approximately 1.602×10⁻¹⁹ joules.

Can you directly convert eV to volts?

No, you cannot directly convert eV to volts since they represent different physical quantities. eV is energy while volts measure electric potential. You need to know the charge to perform the conversion.

What is elementary charge?

Elementary charge (e) is the electric charge of a single proton or the magnitude of charge of a single electron, equal to approximately 1.602176634×10⁻¹⁹ coulombs.

When would you need to convert eV to volts?

This conversion is useful in physics and electronics when analyzing particle accelerators, electron guns, photoelectric effects, or any system where you know the energy of charged particles and need to find the voltage.

What's the difference between using elementary charge vs coulombs?

Elementary charge (e) is the natural unit for single particles, while coulombs (C) are used for macroscopic charges. The conversion factor between them is the elementary charge constant 1.602176634×10⁻¹⁹ C/e.

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