A rontojoule (rJ) is a metric-prefixed unit of energy equal to 10-27 joules, a fraction of a single joule, using the SI ronto prefix.
Rontojoules to Electronvolts
Convert Rontojoule (rJ) to Electronvolt (eV) instantly with an exact formula, conversion table, and FAQ.
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Convert rontojoules (rJ) 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 = rJ × 6.241509074e-09
Results update instantly for Rontojoules to Electronvolts conversions.
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Formula
eV = rJ × 6.241509074e-09
rJ = eV × 160217663.4
Conversion table
| 1 rJ | 6.241509e-09 eV |
| 5 rJ | 3.120755e-08 eV |
| 10 rJ | 6.241509e-08 eV |
| 20 rJ | 1.248302e-07 eV |
| 50 rJ | 3.120755e-07 eV |
| 100 rJ | 6.241509e-07 eV |
| 500 rJ | 0.000003 eV |
| 1000 rJ | 0.000006 eV |
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How the formula works
Both rontojoule and electronvolt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in rontojoules by 6.241509074e-09 to get electronvolts. To reverse the conversion, multiply a electronvolt value by 160217663.4 to get back to rontojoules.
Frequently asked questions
What is Rontojoule (rJ)?
A rontojoule (rJ) is a metric-prefixed unit of energy equal to 10-27 joules, a fraction of a single joule, using the SI ronto 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 rontojoules to electronvolts?
Multiply the rontojoule value by 6.241509074e-09 to get the equivalent in electronvolts. For example, 5 rJ × 6.241509074e-09 = 3.120755e-08 eV.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 6.241509074e-09 is an exact, non-rounded value.
Can I convert electronvolts back to rontojoules?
Yes. Divide the electronvolt value by 6.241509074e-09, or multiply it by 160217663.4, to get rontojoules.
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About converting rontojoules to electronvolts
A rontojoule (rJ) is a metric-prefixed unit of energy equal to 10-27 joules, a fraction of a single joule, using the SI ronto 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 rontojoules 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.