What is an electron-volt?

An electron-volt (eV) is the energy gained by an electron when accelerated through a one-volt potential difference and is exactly equal to 1.602176634×10⁻¹⁹ joule.

What does a kilojoule represent?

A kilojoule (kJ) is an SI-derived unit of energy equal to 1,000 joules, commonly used to measure work, heat, and energy transfer in science and engineering.

Why convert from electron-volts to kilojoules?

Converting from electron-volts to kilojoules helps translate microscopic energy scales used in physics into larger, macroscopic energy units used in engineering, chemistry, and nutrition.

How to Convert from Electron-volt [eV] to Kilojoule [kJ]?

Learn how to convert energy units from electron-volts (eV) to kilojoules (kJ) accurately using this online unit converter tool. Understand the definitions, use cases, and steps to perform conversions easily.

Electron-volt [eV]

Kilojoule [kJ]

Please check your input. It must be a valid numeric value.

Electron-volt [eV] to Kilojoule [kJ] Conversion Table

Electron-volt [eV]	Kilojoule [kJ]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Electron-volt [eV] to Kilojoule [kJ] Conversion Table
Electron-volt [eV]	Kilojoule [kJ]

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What Is This Tool?

This tool enables users to convert energy values from electron-volts (eV) to kilojoules (kJ). It supports translating energy measurements commonly used in atomic, nuclear, and particle physics into macroscopic SI units applicable in engineering, chemistry, and nutrition.

How to Use This Tool?

Enter the numeric value in electron-volts (eV) that you want to convert.
Select electron-volt [eV] as the source unit and kilojoule [kJ] as the target unit.
Click the convert button to get the equivalent energy in kilojoules.
Review the converted value provided in decimal or scientific notation as needed.

Key Features

Converts energy from electron-volts to kilojoules based on established conversion rates.
Easy to use with straightforward input and output interface.
Helpful for diverse fields such as physics, chemistry, semiconductor technology, and nutrition.
Displays conversion results suitable for scientific and engineering applications.

Examples

10 eV converts to 1.6021766339999e-21 kJ.
1,000 eV converts to 1.6021766339999e-19 kJ.

Common Use Cases

Describing photon and atomic electron energies in physics using eV and converting them to kJ for broader applications.
Specifying semiconductor band gaps and carrier energies and translating these into macroscopic units.
Reporting particle and nuclear reaction energies for scientific research in kilojoules.
Expressing chemical reaction enthalpies in energy units suitable for engineering and nutrition labels.

Tips & Best Practices

Use scientific notation for very small kilojoule values resulting from electron-volt conversions.
Ensure precision to avoid rounding errors due to the tiny conversion factor between eV and kJ.
Confirm unit selections before conversion to maintain accuracy.
Understand the energy scale differences to apply conversions appropriately in your field.

Limitations

Conversions yield extremely small decimal values since an electron-volt is much smaller than a kilojoule.
Scientific notation may be necessary for clarity due to tiny numeric results.
Electron-volts are not suited for measuring large-scale mechanical or thermal energy without conversion to larger units.

Frequently Asked Questions

What is an electron-volt?: An electron-volt (eV) is the energy gained by an electron when accelerated through a one-volt potential difference and is exactly equal to 1.602176634×10⁻¹⁹ joule.
What does a kilojoule represent?: A kilojoule (kJ) is an SI-derived unit of energy equal to 1,000 joules, commonly used to measure work, heat, and energy transfer in science and engineering.
Why convert from electron-volts to kilojoules?: Converting from electron-volts to kilojoules helps translate microscopic energy scales used in physics into larger, macroscopic energy units used in engineering, chemistry, and nutrition.

Key Terminology

Electron-volt [eV]: A unit of energy defined as the amount of energy gained by an electron accelerated through a one-volt electrical potential.
Kilojoule [kJ]: An SI-derived unit of energy equal to 1,000 joules, used to quantify heat, work, and other energy transfers.
Conversion Rate: The fixed value indicating how many kilojoules correspond to one electron-volt, specifically 1 eV = 1.6021766339999e-22 kJ.

Quick Knowledge Check

What does 1 electron-volt represent?

The energy transferred by heating 1 gram of water

The energy gained by an electron through a 1 volt potential difference

The energy of 1000 joules

Which unit equals 1,000 joules?

Electron-volt (eV)

Kilojoule (kJ)

Calorie (cal)

Why might scientific notation be needed when converting eV to kJ?

Because the conversion results in very large numbers

Because the conversion results in very small decimal values

Because kilojoules are not precise units

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