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Kilowatt-hours to Joules

Convert Kilowatt-hours to Joules with an exact factor. One kilowatt-hour equals 3,600,000 Joules.

Result3,600,000

How to convert Kilowatt-hours to Joules

The converter above changes Kilowatt-hours into Joules instantly. As a reference point, one kilowatt-hour corresponds to 3,600,000 Joules, and one joule corresponds to 0.00000028 Kilowatt-hours. Use the table below for common values.

Kilowatt-hours × 3,600,000 = Joules

For example, 5 Kilowatt-hours = 18,000,000 Joules.

About the units

Kilowatt-hours to Joules conversion table

Kilowatt-hoursJoules
1 kWh3,600,000 J
2 kWh7,200,000 J
3 kWh10,800,000 J
5 kWh18,000,000 J
10 kWh36,000,000 J
20 kWh72,000,000 J
25 kWh90,000,000 J
50 kWh180,000,000 J
100 kWh360,000,000 J
250 kWh900,000,000 J
500 kWh1,800,000,000 J
1,000 kWh3,600,000,000 J

Joules to Kilowatt-hours conversion table

JoulesKilowatt-hours
1 J0.00000028 kWh
2 J0.00000056 kWh
3 J0.00000083 kWh
5 J0.00000139 kWh
10 J0.00000278 kWh
20 J0.00000556 kWh
25 J0.00000694 kWh
50 J0.00001389 kWh
100 J0.00002778 kWh
250 J0.00006944 kWh
500 J0.00013889 kWh
1,000 J0.00027778 kWh

Frequently asked questions

How many Joules is one kilowatt-hour?
One kilowatt-hour is 3,600,000 Joules.
Are these energy conversions accurate?
Yes. They use the exact standard unit definitions, so results are accurate to the number of decimals shown.
What is the formula to convert Kilowatt-hours to Joules?
Multiply the number of Kilowatt-hours by 3,600,000. To convert back, multiply Joules by 0.00000028.
This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026