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 Attojoules
Convert Rontojoule (rJ) to Attojoule (aJ) instantly with an exact formula, conversion table, and FAQ.
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Convert rontojoules (rJ) to attojoules (aJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
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.
aJ = rJ × 1.000000000e-09
Results update instantly for Rontojoules to Attojoules conversions.
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Formula
aJ = rJ × 1.000000000e-09
rJ = aJ × 1000000000
Conversion table
| 1 rJ | 1.000000e-09 aJ |
| 5 rJ | 5.000000e-09 aJ |
| 10 rJ | 1.000000e-08 aJ |
| 20 rJ | 2.000000e-08 aJ |
| 50 rJ | 5.000000e-08 aJ |
| 100 rJ | 1.000000e-07 aJ |
| 500 rJ | 5.000000e-07 aJ |
| 1000 rJ | 0.000001 aJ |
Related conversions
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How the formula works
Both rontojoule and attojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in rontojoules by 1.000000000e-09 to get attojoules. To reverse the conversion, multiply a attojoule value by 1000000000 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 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.
How do I convert rontojoules to attojoules?
Multiply the rontojoule value by 1.000000000e-09 to get the equivalent in attojoules. For example, 5 rJ × 1.000000000e-09 = 5.000000e-09 aJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-09 is an exact, non-rounded value.
Can I convert attojoules back to rontojoules?
Yes. Divide the attojoule value by 1.000000000e-09, or multiply it by 1000000000, to get rontojoules.
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About converting rontojoules to attojoules
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. 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.
Use this calculator to move between rontojoules and attojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.