A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
Petajoules to Terajoules
Convert Petajoule (PJ) to Terajoule (TJ) instantly with an exact formula, conversion table, and FAQ.
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Convert petajoules (PJ) to terajoules (TJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix.
TJ = PJ × 1000
Results update instantly for Petajoules to Terajoules conversions.
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Formula
TJ = PJ × 1000
PJ = TJ × 0.001
Conversion table
| 1 PJ | 1000 TJ |
| 5 PJ | 5000 TJ |
| 10 PJ | 10000 TJ |
| 20 PJ | 20000 TJ |
| 50 PJ | 50000 TJ |
| 100 PJ | 100000 TJ |
| 500 PJ | 500000 TJ |
| 1000 PJ | 1.000000e+06 TJ |
Related conversions
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How the formula works
Both petajoule and terajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in petajoules by 1000 to get terajoules. To reverse the conversion, multiply a terajoule value by 0.001 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 Terajoule (TJ)?
A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix.
How do I convert petajoules to terajoules?
Multiply the petajoule value by 1000 to get the equivalent in terajoules. For example, 5 PJ × 1000 = 5000 TJ.
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 terajoules back to petajoules?
Yes. Divide the terajoule value by 1000, or multiply it by 0.001, to get petajoules.
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About converting petajoules to terajoules
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix. A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix.
Use this calculator to move between petajoules and terajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.