Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert energy measurements from joule to kilowatt hour and kilowatt hour to joule.
1 kilowatt hour (kwh) = 3600000 joule (j)
1 joule (j) = 3.0E-7 kilowatt hour (kwh)