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.
Attojoules to Electronvolts
Convert Attojoule (aJ) to Electronvolt (eV) instantly with an exact formula, conversion table, and FAQ.
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Convert attojoules (aJ) to electronvolts (eV) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
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.
eV = aJ × 6.241509074
Results update instantly for Attojoules to Electronvolts conversions.
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Formula
eV = aJ × 6.241509074
aJ = eV × 0.1602176634
Conversion table
| 1 aJ | 6.241509 eV |
| 5 aJ | 31.207545 eV |
| 10 aJ | 62.415091 eV |
| 20 aJ | 124.830181 eV |
| 50 aJ | 312.075454 eV |
| 100 aJ | 624.150907 eV |
| 500 aJ | 3120.754537 eV |
| 1000 aJ | 6241.509074 eV |
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How the formula works
Both attojoule and electronvolt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attojoules by 6.241509074 to get electronvolts. To reverse the conversion, multiply a electronvolt value by 0.1602176634 to get back to attojoules.
Frequently asked questions
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.
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.
How do I convert attojoules to electronvolts?
Multiply the attojoule value by 6.241509074 to get the equivalent in electronvolts. For example, 5 aJ × 6.241509074 = 31.207545 eV.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 6.241509074 is an exact, non-rounded value.
Can I convert electronvolts back to attojoules?
Yes. Divide the electronvolt value by 6.241509074, or multiply it by 0.1602176634, to get attojoules.
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About converting attojoules to electronvolts
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. 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.
Use this calculator to move between attojoules and electronvolts accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.