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.
Centijoules to Joules
Convert Centijoule (cJ) to Joule (J) instantly with an exact formula, conversion table, and FAQ.
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Convert centijoules (cJ) to joules (J) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
J = cJ × 0.01
Results update instantly for Centijoules to Joules conversions.
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Formula
J = cJ × 0.01
cJ = J × 100
Conversion table
| 1 cJ | 0.010000 J |
| 5 cJ | 0.050000 J |
| 10 cJ | 0.100000 J |
| 20 cJ | 0.200000 J |
| 50 cJ | 0.500000 J |
| 100 cJ | 1 J |
| 500 cJ | 5 J |
| 1000 cJ | 10 J |
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How the formula works
Both centijoule and joule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in centijoules by 0.01 to get joules. To reverse the conversion, multiply a joule value by 100 to get back to centijoules.
Frequently asked questions
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.
What is Joule (J)?
The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
How do I convert centijoules to joules?
Multiply the centijoule value by 0.01 to get the equivalent in joules. For example, 5 cJ × 0.01 = 0.050000 J.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.01 is an exact, non-rounded value.
Can I convert joules back to centijoules?
Yes. Divide the joule value by 0.01, or multiply it by 100, to get centijoules.
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About converting centijoules to joules
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. The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
Use this calculator to move between centijoules and joules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.