A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
Exajoules to Petajoules
Convert Exajoule (EJ) to Petajoule (PJ) instantly with an exact formula, conversion table, and FAQ.
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Convert exajoules (EJ) to petajoules (PJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
PJ = EJ × 1000
Results update instantly for Exajoules to Petajoules conversions.
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Formula
PJ = EJ × 1000
EJ = PJ × 0.001
Conversion table
| 1 EJ | 1000 PJ |
| 5 EJ | 5000 PJ |
| 10 EJ | 10000 PJ |
| 20 EJ | 20000 PJ |
| 50 EJ | 50000 PJ |
| 100 EJ | 100000 PJ |
| 500 EJ | 500000 PJ |
| 1000 EJ | 1.000000e+06 PJ |
Related conversions
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How the formula works
Both exajoule and petajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in exajoules by 1000 to get petajoules. To reverse the conversion, multiply a petajoule value by 0.001 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 Petajoule (PJ)?
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
How do I convert exajoules to petajoules?
Multiply the exajoule value by 1000 to get the equivalent in petajoules. For example, 5 EJ × 1000 = 5000 PJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000 is an exact, non-rounded value.
Can I convert petajoules back to exajoules?
Yes. Divide the petajoule value by 1000, or multiply it by 0.001, to get exajoules.
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About converting exajoules to petajoules
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix. A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
Use this calculator to move between exajoules and petajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.