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.
Attojoules to Decajoules
Convert Attojoule (aJ) to Decajoule (daJ) instantly with an exact formula, conversion table, and FAQ.
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Convert attojoules (aJ) 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 = aJ × 1.000000000e-19
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Formula
daJ = aJ × 1.000000000e-19
aJ = daJ × 1.000000000e+19
Conversion table
| 1 aJ | 1.000000e-19 daJ |
| 5 aJ | 5.000000e-19 daJ |
| 10 aJ | 1.000000e-18 daJ |
| 20 aJ | 2.000000e-18 daJ |
| 50 aJ | 5.000000e-18 daJ |
| 100 aJ | 1.000000e-17 daJ |
| 500 aJ | 5.000000e-17 daJ |
| 1000 aJ | 1.000000e-16 daJ |
Related conversions
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How the formula works
Both attojoule and decajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attojoules by 1.000000000e-19 to get decajoules. To reverse the conversion, multiply a decajoule value by 1.000000000e+19 to get back to attojoules.
Frequently asked questions
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.
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 attojoules to decajoules?
Multiply the attojoule value by 1.000000000e-19 to get the equivalent in decajoules. For example, 5 aJ × 1.000000000e-19 = 5.000000e-19 daJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-19 is an exact, non-rounded value.
Can I convert decajoules back to attojoules?
Yes. Divide the decajoule value by 1.000000000e-19, or multiply it by 1.000000000e+19, to get attojoules.
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About converting attojoules to decajoules
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. 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 attojoules 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.