Kilowatt-hour to Joule Converter

1 Kilowatt-hour = 3600000 Joules. To convert Kilowatt-hours to Joules, multiply by 3600000.

Result updates as you type
Recent: 1 Kilowatt-hour = 3600000 Joule

Formula

To convert Kilowatt-hours to Joules, multiply the value by 3600000. One Kilowatt-hour equals 3600000 Joules.

J = kWh × 3600000

Worked examples

  • 1 Kilowatt-hour = 3600000 Joules
  • 5 Kilowatt-hours = 18000000 Joules
  • 10 Kilowatt-hours = 36000000 Joules
  • 100 Kilowatt-hours = 360000000 Joules

Kilowatt-hours to Joules table

Kilowatt-hours (kWh) Joules (J)
1 3600000
2 7200000
3 10800000
4 14400000
5 18000000
10 36000000
25 90000000
50 180000000
100 360000000
250 900000000
500 1800000000
1000 3600000000

About Kilowatt-hour and Joule

Both the Kilowatt-hour (kWh) and the Joule (J) measure energy. One Kilowatt-hour is equal to 3600000 Joules, so you can convert any measurement by multiplying by 3600000. The calculator above updates instantly, and the reference table lists common Kilowatt-hour-to-Joule values for quick lookups.

Unit definitions

Kilowatt-hour (kWh)
The Kilowatt-hour (kWh) is a unit of energy equal to 3600000 Joules.
Joule (J)
The Joule (J) is the reference unit for energy in this converter — every other energy unit is defined relative to it.

Frequently asked questions

How do you convert Kilowatt-hours to Joules?
Multiply the number of Kilowatt-hours by 3600000. For example, 1 Kilowatt-hour × 3600000 = 3600000 Joules.
How many Joules are in a Kilowatt-hour?
There are 3600000 Joules in one Kilowatt-hour.
What is 10 Kilowatt-hours in Joules?
10 Kilowatt-hours is equal to 36000000 Joules.
How do you convert Joules back to Kilowatt-hours?
Multiply the number of Joules by 0.000000277778 to get Kilowatt-hours. One Joule equals 0.000000277778 Kilowatt-hours.