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 Kilojoules
Convert Centijoule (cJ) to Kilojoule (kJ) 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 kilojoules (kJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
kJ = cJ × 0.00001
Results update instantly for Centijoules to Kilojoules conversions.
Reserved above the conversion cards and below the converter.
Formula
kJ = cJ × 0.00001
cJ = kJ × 100000
Conversion table
| 1 cJ | 0.000010 kJ |
| 5 cJ | 0.000050 kJ |
| 10 cJ | 0.000100 kJ |
| 20 cJ | 0.000200 kJ |
| 50 cJ | 0.000500 kJ |
| 100 cJ | 0.001000 kJ |
| 500 cJ | 0.005000 kJ |
| 1000 cJ | 0.010000 kJ |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both centijoule and kilojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in centijoules by 0.00001 to get kilojoules. To reverse the conversion, multiply a kilojoule value by 100000 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 Kilojoule (kJ)?
A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
How do I convert centijoules to kilojoules?
Multiply the centijoule value by 0.00001 to get the equivalent in kilojoules. For example, 5 cJ × 0.00001 = 0.000050 kJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.00001 is an exact, non-rounded value.
Can I convert kilojoules back to centijoules?
Yes. Divide the kilojoule value by 0.00001, or multiply it by 100000, to get centijoules.
Reserved between the FAQ and the article so the page stays balanced.
About converting centijoules to kilojoules
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 kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
Use this calculator to move between centijoules and kilojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.