A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
Exajoules to Decajoules
Convert Exajoule (EJ) to Decajoule (daJ) instantly with an exact formula, conversion table, and FAQ.
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Convert exajoules (EJ) 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 = EJ × 1.000000000e+17
Results update instantly for Exajoules to Decajoules conversions.
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Formula
daJ = EJ × 1.000000000e+17
EJ = daJ × 1.000000000e-17
Conversion table
| 1 EJ | 1.000000e+17 daJ |
| 5 EJ | 5.000000e+17 daJ |
| 10 EJ | 1.000000e+18 daJ |
| 20 EJ | 2.000000e+18 daJ |
| 50 EJ | 5.000000e+18 daJ |
| 100 EJ | 1.000000e+19 daJ |
| 500 EJ | 5.000000e+19 daJ |
| 1000 EJ | 1.000000e+20 daJ |
Related conversions
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How the formula works
Both exajoule and decajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in exajoules by 1.000000000e+17 to get decajoules. To reverse the conversion, multiply a decajoule value by 1.000000000e-17 to get back to exajoules.
Frequently asked questions
What is Exajoule (EJ)?
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa 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 exajoules to decajoules?
Multiply the exajoule value by 1.000000000e+17 to get the equivalent in decajoules. For example, 5 EJ × 1.000000000e+17 = 5.000000e+17 daJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+17 is an exact, non-rounded value.
Can I convert decajoules back to exajoules?
Yes. Divide the decajoule value by 1.000000000e+17, or multiply it by 1.000000000e-17, to get exajoules.
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About converting exajoules to decajoules
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa 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 exajoules 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.