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 Megajoules
Convert Centijoule (cJ) to Megajoule (MJ) instantly with an exact formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Energy calculator
Energy Converter
Convert centijoules (cJ) to megajoules (MJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A megajoule (MJ) is a metric-prefixed unit of energy equal to 106 joules, using the SI mega prefix.
MJ = cJ × 1.000000000e-08
Results update instantly for Centijoules to Megajoules conversions.
Reserved above the conversion cards and below the converter.
Formula
MJ = cJ × 1.000000000e-08
cJ = MJ × 100000000
Conversion table
| 1 cJ | 1.000000e-08 MJ |
| 5 cJ | 5.000000e-08 MJ |
| 10 cJ | 1.000000e-07 MJ |
| 20 cJ | 2.000000e-07 MJ |
| 50 cJ | 5.000000e-07 MJ |
| 100 cJ | 0.000001 MJ |
| 500 cJ | 0.000005 MJ |
| 1000 cJ | 0.000010 MJ |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both centijoule and megajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in centijoules by 1.000000000e-08 to get megajoules. To reverse the conversion, multiply a megajoule value by 100000000 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 Megajoule (MJ)?
A megajoule (MJ) is a metric-prefixed unit of energy equal to 106 joules, using the SI mega prefix.
How do I convert centijoules to megajoules?
Multiply the centijoule value by 1.000000000e-08 to get the equivalent in megajoules. For example, 5 cJ × 1.000000000e-08 = 5.000000e-08 MJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-08 is an exact, non-rounded value.
Can I convert megajoules back to centijoules?
Yes. Divide the megajoule value by 1.000000000e-08, or multiply it by 100000000, to get centijoules.
Reserved between the FAQ and the article so the page stays balanced.
About converting centijoules to megajoules
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. A megajoule (MJ) is a metric-prefixed unit of energy equal to 106 joules, using the SI mega prefix.
Use this calculator to move between centijoules and megajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.