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 Kilowatt hours
Convert Electronvolt (eV) to Kilowatt-hour (kWh) instantly with an exact formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Energy calculator
Energy Converter
Convert electronvolts (eV) to kilowatt hours (kWh) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
kWh = eV × 4.450490650e-26
Results update instantly for Electronvolts to Kilowatt hours conversions.
Reserved above the conversion cards and below the converter.
Formula
kWh = eV × 4.450490650e-26
eV = kWh × 2.246943267e+25
Conversion table
| 1 eV | 4.450491e-26 kWh |
| 5 eV | 2.225245e-25 kWh |
| 10 eV | 4.450491e-25 kWh |
| 20 eV | 8.900981e-25 kWh |
| 50 eV | 2.225245e-24 kWh |
| 100 eV | 4.450491e-24 kWh |
| 500 eV | 2.225245e-23 kWh |
| 1000 eV | 4.450491e-23 kWh |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both electronvolt and kilowatt-hour measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in electronvolts by 4.450490650e-26 to get kilowatt hours. To reverse the conversion, multiply a kilowatt-hour value by 2.246943267e+25 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 Kilowatt-hour (kWh)?
A kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
How do I convert electronvolts to kilowatt hours?
Multiply the electronvolt value by 4.450490650e-26 to get the equivalent in kilowatt hours. For example, 5 eV × 4.450490650e-26 = 2.225245e-25 kWh.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 4.450490650e-26 is an exact, non-rounded value.
Can I convert kilowatt hours back to electronvolts?
Yes. Divide the kilowatt-hour value by 4.450490650e-26, or multiply it by 2.246943267e+25, to get electronvolts.
Reserved between the FAQ and the article so the page stays balanced.
About converting electronvolts to kilowatt hours
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 kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
Use this calculator to move between electronvolts and kilowatt hours accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.