An electronvolt (eV) is the energy gained by a single electron accelerating through a potential difference of one volt, widely used in atomic and particle physics.
Electronvolts to Attojoules
Convert Electronvolt (eV) to Attojoule (aJ) instantly with an exact formula, conversion table, and FAQ.
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Convert electronvolts (eV) to attojoules (aJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto prefix.
aJ = eV × 0.1602176634
Results update instantly for Electronvolts to Attojoules conversions.
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Formula
aJ = eV × 0.1602176634
eV = aJ × 6.241509074
Conversion table
| 1 eV | 0.160218 aJ |
| 5 eV | 0.801088 aJ |
| 10 eV | 1.602177 aJ |
| 20 eV | 3.204353 aJ |
| 50 eV | 8.010883 aJ |
| 100 eV | 16.021766 aJ |
| 500 eV | 80.108832 aJ |
| 1000 eV | 160.217663 aJ |
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How the formula works
Both electronvolt and attojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in electronvolts by 0.1602176634 to get attojoules. To reverse the conversion, multiply a attojoule value by 6.241509074 to get back to electronvolts.
Frequently asked questions
What is Electronvolt (eV)?
An electronvolt (eV) is the energy gained by a single electron accelerating through a potential difference of one volt, widely used in atomic and particle physics.
What is Attojoule (aJ)?
A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto prefix.
How do I convert electronvolts to attojoules?
Multiply the electronvolt value by 0.1602176634 to get the equivalent in attojoules. For example, 5 eV × 0.1602176634 = 0.801088 aJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.1602176634 is an exact, non-rounded value.
Can I convert attojoules back to electronvolts?
Yes. Divide the attojoule value by 0.1602176634, or multiply it by 6.241509074, to get electronvolts.
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About converting electronvolts to attojoules
An electronvolt (eV) is the energy gained by a single electron accelerating through a potential difference of one volt, widely used in atomic and particle physics. A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto prefix.
Use this calculator to move between electronvolts and attojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.