Convert Kilowatt-hours to Joules
One kilowatt-hour equals 3,600,000 joules. Type any value to convert kilowatt-hours to joules instantly — with a full reference table below.
Convert Kilowatt-hours to Joules
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Conversion formula
To convert kilowatt-hours to joules, multiply by 3,600,000. One kilowatt-hour equals 3,600,000 J, and one joule equals 0 kWh.
Kilowatt-hours to Joules table
About converting Kilowatt-hours to Joules
Kilowatt-hours (kWh) and Joules (J) are both units of energy. The exact factor is 1 kWh = 3,600,000 J, so multiply by 3,600,000 to go from kilowatt-hours to joules (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Joules to Kilowatt-hours converter, or the full unit converter for every unit at once.
Frequently asked questions
How many joules are in one kilowatt-hour?
One kilowatt-hour equals 3,600,000 joules.
How do I convert kilowatt-hours to joules?
Multiply the number of kilowatt-hours by 3,600,000. For example, 10 kilowatt-hours = 36,000,000 joules.
What is 5 kilowatt-hours in joules?
5 kilowatt-hours is 18,000,000 joules.