A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix.
Petajoules to Centijoules
Convert Petajoule (PJ) to Centijoule (cJ) instantly with an exact formula, conversion table, and FAQ.
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Convert petajoules (PJ) to centijoules (cJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A centijoule (cJ) is a metric-prefixed unit of energy equal to 10-2 joules, a fraction of a single joule, using the SI centi prefix.
cJ = PJ × 1.000000000e+17
Results update instantly for Petajoules to Centijoules conversions.
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Formula
cJ = PJ × 1.000000000e+17
PJ = cJ × 1.000000000e-17
Conversion table
| 1 PJ | 1.000000e+17 cJ |
| 5 PJ | 5.000000e+17 cJ |
| 10 PJ | 1.000000e+18 cJ |
| 20 PJ | 2.000000e+18 cJ |
| 50 PJ | 5.000000e+18 cJ |
| 100 PJ | 1.000000e+19 cJ |
| 500 PJ | 5.000000e+19 cJ |
| 1000 PJ | 1.000000e+20 cJ |
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How the formula works
Both petajoule and centijoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in petajoules by 1.000000000e+17 to get centijoules. To reverse the conversion, multiply a centijoule value by 1.000000000e-17 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 Centijoule (cJ)?
A centijoule (cJ) is a metric-prefixed unit of energy equal to 10-2 joules, a fraction of a single joule, using the SI centi prefix.
How do I convert petajoules to centijoules?
Multiply the petajoule value by 1.000000000e+17 to get the equivalent in centijoules. For example, 5 PJ × 1.000000000e+17 = 5.000000e+17 cJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+17 is an exact, non-rounded value.
Can I convert centijoules back to petajoules?
Yes. Divide the centijoule value by 1.000000000e+17, or multiply it by 1.000000000e-17, to get petajoules.
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About converting petajoules to centijoules
A petajoule (PJ) is a metric-prefixed unit of energy equal to 1015 joules, using the SI peta prefix. A centijoule (cJ) is a metric-prefixed unit of energy equal to 10-2 joules, a fraction of a single joule, using the SI centi prefix.
Use this calculator to move between petajoules and centijoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.