A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
Petajoules to Decajoules
Convert Petajoule (PJ) to Decajoule (daJ) instantly with an exact formula, conversion table, and FAQ.
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Convert petajoules (PJ) 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 = PJ × 100000000000000
Results update instantly for Petajoules to Decajoules conversions.
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Formula
daJ = PJ × 100000000000000
PJ = daJ × 1.000000000e-14
Conversion table
| 1 PJ | 1.000000e+14 daJ |
| 5 PJ | 5.000000e+14 daJ |
| 10 PJ | 1.000000e+15 daJ |
| 20 PJ | 2.000000e+15 daJ |
| 50 PJ | 5.000000e+15 daJ |
| 100 PJ | 1.000000e+16 daJ |
| 500 PJ | 5.000000e+16 daJ |
| 1000 PJ | 1.000000e+17 daJ |
Related conversions
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How the formula works
Both petajoule and decajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in petajoules by 100000000000000 to get decajoules. To reverse the conversion, multiply a decajoule value by 1.000000000e-14 to get back to petajoules.
Frequently asked questions
What is Petajoule (PJ)?
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta 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 petajoules to decajoules?
Multiply the petajoule value by 100000000000000 to get the equivalent in decajoules. For example, 5 PJ × 100000000000000 = 5.000000e+14 daJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 100000000000000 is an exact, non-rounded value.
Can I convert decajoules back to petajoules?
Yes. Divide the decajoule value by 100000000000000, or multiply it by 1.000000000e-14, to get petajoules.
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About converting petajoules to decajoules
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta 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 petajoules 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.