A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
Petajoules to Yottajoules
Convert Petajoule (PJ) to Yottajoule (YJ) instantly with an exact formula, conversion table, and FAQ.
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Convert petajoules (PJ) to yottajoules (YJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A yottajoule (YJ) is a metric-prefixed unit of energy equal to 1024 joules, using the SI yotta prefix.
YJ = PJ × 1.000000000e-09
Results update instantly for Petajoules to Yottajoules conversions.
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Formula
YJ = PJ × 1.000000000e-09
PJ = YJ × 1000000000
Conversion table
| 1 PJ | 1.000000e-09 YJ |
| 5 PJ | 5.000000e-09 YJ |
| 10 PJ | 1.000000e-08 YJ |
| 20 PJ | 2.000000e-08 YJ |
| 50 PJ | 5.000000e-08 YJ |
| 100 PJ | 1.000000e-07 YJ |
| 500 PJ | 5.000000e-07 YJ |
| 1000 PJ | 0.000001 YJ |
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How the formula works
Both petajoule and yottajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in petajoules by 1.000000000e-09 to get yottajoules. To reverse the conversion, multiply a yottajoule value by 1000000000 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 Yottajoule (YJ)?
A yottajoule (YJ) is a metric-prefixed unit of energy equal to 1024 joules, using the SI yotta prefix.
How do I convert petajoules to yottajoules?
Multiply the petajoule value by 1.000000000e-09 to get the equivalent in yottajoules. For example, 5 PJ × 1.000000000e-09 = 5.000000e-09 YJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-09 is an exact, non-rounded value.
Can I convert yottajoules back to petajoules?
Yes. Divide the yottajoule value by 1.000000000e-09, or multiply it by 1000000000, to get petajoules.
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About converting petajoules to yottajoules
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix. A yottajoule (YJ) is a metric-prefixed unit of energy equal to 1024 joules, using the SI yotta prefix.
Use this calculator to move between petajoules and yottajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.