Energy
Joule to Kilowatt-hours
Convert joule to kilowatt-hours instantly.
About this conversion
Joule (J) er SI-grundenheden for energi og bruges i fysik, kemi og teknik. At løfte et æble én meter kræver ca. 1 joule, og en menneskekrops daglige energibehov er ca. 8 millioner joule. 1.000 joule er én kilojoule. Kilowatt-hours (kWh) are the standard unit on electricity bills. 1 kWh = 1,000 Wh. 3,600,000 joule equal 1 Kilowatt-hours. The converter above calculates the result instantly — you can also swap the units to convert in the other direction.
How to use
Enter a value in the joule field and instantly see the result in kilowatt-hours. Click the swap button to reverse the conversion.
Manual calculation
1 joule = 0.0000002778 kilowatt-hours. Example: 10 J = 0.0000027778 kWh.
Frequently asked questions
How do you convert joule to kilowatt-hours?
Divide the number of joule by 3,600,000 to get kilowatt-hours. Example: 100,000 J ÷ 3,600,000 = 0.027778 kWh.
Are joule bigger or smaller than kilowatt-hours?
Joule is smaller than Kilowatt-hours. There are 3,600,000 joule in one kilowatt-hour, so the result is a smaller number when converting from joule to kilowatt-hours.
What is 10,000 joule in kilowatt-hours?
10,000 J equals 0.0027778 kWh.
How many joule are in 1 kilowatt-hour?
1 kWh equals 3,600,000 J. This is the reverse conversion — useful if you have a value in kilowatt-hours and want it in joule.
What is joule?
Joule (J) er SI-grundenheden for energi og bruges i fysik, kemi og teknik. At løfte et æble én meter kræver ca. 1 joule, og en menneskekrops daglige energibehov er ca. 8 millioner joule. 1.000 joule er én kilojoule.
What is kilowatt-hour used for?
Kilowatt-hours (kWh) are the standard unit on electricity bills. 1 kWh = 1,000 Wh.