A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
Petajoules to Quettajoules
Convert Petajoule (PJ) to Quettajoule (QJ) instantly with an exact formula, conversion table, and FAQ.
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Convert petajoules (PJ) to quettajoules (QJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
QJ = PJ × 1.000000000e-15
Results update instantly for Petajoules to Quettajoules conversions.
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Formula
QJ = PJ × 1.000000000e-15
PJ = QJ × 1.000000000e+15
Conversion table
| 1 PJ | 1.000000e-15 QJ |
| 5 PJ | 5.000000e-15 QJ |
| 10 PJ | 1.000000e-14 QJ |
| 20 PJ | 2.000000e-14 QJ |
| 50 PJ | 5.000000e-14 QJ |
| 100 PJ | 1.000000e-13 QJ |
| 500 PJ | 5.000000e-13 QJ |
| 1000 PJ | 1.000000e-12 QJ |
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How the formula works
Both petajoule and quettajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in petajoules by 1.000000000e-15 to get quettajoules. To reverse the conversion, multiply a quettajoule value by 1.000000000e+15 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 Quettajoule (QJ)?
A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
How do I convert petajoules to quettajoules?
Multiply the petajoule value by 1.000000000e-15 to get the equivalent in quettajoules. For example, 5 PJ × 1.000000000e-15 = 5.000000e-15 QJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-15 is an exact, non-rounded value.
Can I convert quettajoules back to petajoules?
Yes. Divide the quettajoule value by 1.000000000e-15, or multiply it by 1.000000000e+15, to get petajoules.
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About converting petajoules to quettajoules
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix. A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
Use this calculator to move between petajoules and quettajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.