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 Zettajoules
Convert Electronvolt (eV) to Zettajoule (ZJ) instantly with an exact formula, conversion table, and FAQ.
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Convert electronvolts (eV) to zettajoules (ZJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A zettajoule (ZJ) is a metric-prefixed unit of energy equal to 1021 joules, using the SI zetta prefix.
ZJ = eV × 1.602176634e-40
Results update instantly for Electronvolts to Zettajoules conversions.
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Formula
ZJ = eV × 1.602176634e-40
eV = ZJ × 6.241509074e+39
Conversion table
| 1 eV | 1.602177e-40 ZJ |
| 5 eV | 8.010883e-40 ZJ |
| 10 eV | 1.602177e-39 ZJ |
| 20 eV | 3.204353e-39 ZJ |
| 50 eV | 8.010883e-39 ZJ |
| 100 eV | 1.602177e-38 ZJ |
| 500 eV | 8.010883e-38 ZJ |
| 1000 eV | 1.602177e-37 ZJ |
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How the formula works
Both electronvolt and zettajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in electronvolts by 1.602176634e-40 to get zettajoules. To reverse the conversion, multiply a zettajoule value by 6.241509074e+39 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 Zettajoule (ZJ)?
A zettajoule (ZJ) is a metric-prefixed unit of energy equal to 1021 joules, using the SI zetta prefix.
How do I convert electronvolts to zettajoules?
Multiply the electronvolt value by 1.602176634e-40 to get the equivalent in zettajoules. For example, 5 eV × 1.602176634e-40 = 8.010883e-40 ZJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.602176634e-40 is an exact, non-rounded value.
Can I convert zettajoules back to electronvolts?
Yes. Divide the zettajoule value by 1.602176634e-40, or multiply it by 6.241509074e+39, to get electronvolts.
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About converting electronvolts to zettajoules
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 zettajoule (ZJ) is a metric-prefixed unit of energy equal to 1021 joules, using the SI zetta prefix.
Use this calculator to move between electronvolts and zettajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.