A kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
Kilowatt hours to Centijoules
Convert Kilowatt-hour (kWh) to Centijoule (cJ) instantly with an exact formula, conversion table, and FAQ.
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Convert kilowatt hours (kWh) 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 = kWh × 360000000
Results update instantly for Kilowatt hours to Centijoules conversions.
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Formula
cJ = kWh × 360000000
kWh = cJ × 2.777777778e-09
Conversion table
| 1 kWh | 3.600000e+08 cJ |
| 5 kWh | 1.800000e+09 cJ |
| 10 kWh | 3.600000e+09 cJ |
| 20 kWh | 7.200000e+09 cJ |
| 50 kWh | 1.800000e+10 cJ |
| 100 kWh | 3.600000e+10 cJ |
| 500 kWh | 1.800000e+11 cJ |
| 1000 kWh | 3.600000e+11 cJ |
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How the formula works
Both kilowatt-hour and centijoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in kilowatt hours by 360000000 to get centijoules. To reverse the conversion, multiply a centijoule value by 2.777777778e-09 to get back to kilowatt hours.
Frequently asked questions
What is Kilowatt-hour (kWh)?
A kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
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 kilowatt hours to centijoules?
Multiply the kilowatt-hour value by 360000000 to get the equivalent in centijoules. For example, 5 kWh × 360000000 = 1.800000e+09 cJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 360000000 is an exact, non-rounded value.
Can I convert centijoules back to kilowatt hours?
Yes. Divide the centijoule value by 360000000, or multiply it by 2.777777778e-09, to get kilowatt hours.
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About converting kilowatt hours to centijoules
A kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour. 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 kilowatt hours 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.