A ronnajoule (RJ) is a metric-prefixed unit of energy equal to 1027 joules, using the SI ronna prefix.
Ronnajoules to Decajoules
Convert Ronnajoule (RJ) to Decajoule (daJ) instantly with an exact formula, conversion table, and FAQ.
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Convert ronnajoules (RJ) to decajoules (daJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
daJ = RJ × 1.000000000e+26
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Formula
daJ = RJ × 1.000000000e+26
RJ = daJ × 1.000000000e-26
Conversion table
| 1 RJ | 1.000000e+26 daJ |
| 5 RJ | 5.000000e+26 daJ |
| 10 RJ | 1.000000e+27 daJ |
| 20 RJ | 2.000000e+27 daJ |
| 50 RJ | 5.000000e+27 daJ |
| 100 RJ | 1.000000e+28 daJ |
| 500 RJ | 5.000000e+28 daJ |
| 1000 RJ | 1.000000e+29 daJ |
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How the formula works
Both ronnajoule and decajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ronnajoules by 1.000000000e+26 to get decajoules. To reverse the conversion, multiply a decajoule value by 1.000000000e-26 to get back to ronnajoules.
Frequently asked questions
What is Ronnajoule (RJ)?
A ronnajoule (RJ) is a metric-prefixed unit of energy equal to 1027 joules, using the SI ronna prefix.
What is Decajoule (daJ)?
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
How do I convert ronnajoules to decajoules?
Multiply the ronnajoule value by 1.000000000e+26 to get the equivalent in decajoules. For example, 5 RJ × 1.000000000e+26 = 5.000000e+26 daJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+26 is an exact, non-rounded value.
Can I convert decajoules back to ronnajoules?
Yes. Divide the decajoule value by 1.000000000e+26, or multiply it by 1.000000000e-26, to get ronnajoules.
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About converting ronnajoules to decajoules
A ronnajoule (RJ) is a metric-prefixed unit of energy equal to 1027 joules, using the SI ronna prefix. A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
Use this calculator to move between ronnajoules and decajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.