A watt-hour (Wh) is the energy delivered by one watt of power sustained for one hour, equal to 3,600 joules.
Watt hours to Electronvolts
Convert Watt-hour (Wh) to Electronvolt (eV) instantly with an exact formula, conversion table, and FAQ.
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Convert watt hours (Wh) 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 = Wh × 2.246943267e+22
Results update instantly for Watt hours to Electronvolts conversions.
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Formula
eV = Wh × 2.246943267e+22
Wh = eV × 4.450490650e-23
Conversion table
| 1 Wh | 2.246943e+22 eV |
| 5 Wh | 1.123472e+23 eV |
| 10 Wh | 2.246943e+23 eV |
| 20 Wh | 4.493887e+23 eV |
| 50 Wh | 1.123472e+24 eV |
| 100 Wh | 2.246943e+24 eV |
| 500 Wh | 1.123472e+25 eV |
| 1000 Wh | 2.246943e+25 eV |
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How the formula works
Both watt-hour and electronvolt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in watt hours by 2.246943267e+22 to get electronvolts. To reverse the conversion, multiply a electronvolt value by 4.450490650e-23 to get back to watt hours.
Frequently asked questions
What is Watt-hour (Wh)?
A watt-hour (Wh) is the energy delivered by one watt of power sustained for one hour, equal to 3,600 joules.
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 watt hours to electronvolts?
Multiply the watt-hour value by 2.246943267e+22 to get the equivalent in electronvolts. For example, 5 Wh × 2.246943267e+22 = 1.123472e+23 eV.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 2.246943267e+22 is an exact, non-rounded value.
Can I convert electronvolts back to watt hours?
Yes. Divide the electronvolt value by 2.246943267e+22, or multiply it by 4.450490650e-23, to get watt hours.
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About converting watt hours to electronvolts
A watt-hour (Wh) is the energy delivered by one watt of power sustained for one hour, equal to 3,600 joules. 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 watt hours 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.