Kilowatt-hours to Megajoules
Convert kilowatt-hours (kWh) to megajoules (MJ). Type in either box; the other updates as you go.
How to convert kilowatt-hours to megajoules
To convert kilowatt-hours to megajoules, multiply the number of kilowatt-hours by 3.6.
Example
Convert 5 kilowatt-hours to megajoules:
Kilowatt-hour to megajoule conversion chart
| Kilowatt-hours (kWh) | Megajoules (MJ) |
|---|---|
| 1 kWh | 3.6 MJ |
| 2 kWh | 7.2 MJ |
| 3 kWh | 10.8 MJ |
| 4 kWh | 14.4 MJ |
| 5 kWh | 18 MJ |
| 6 kWh | 21.6 MJ |
| 7 kWh | 25.2 MJ |
| 8 kWh | 28.8 MJ |
| 9 kWh | 32.4 MJ |
| 10 kWh | 36 MJ |
| 12 kWh | 43.2 MJ |
| 15 kWh | 54 MJ |
| 20 kWh | 72 MJ |
| 25 kWh | 90 MJ |
| 30 kWh | 108 MJ |
| 40 kWh | 144 MJ |
| 50 kWh | 180 MJ |
| 60 kWh | 216 MJ |
| 70 kWh | 252 MJ |
| 75 kWh | 270 MJ |
| 80 kWh | 288 MJ |
| 90 kWh | 324 MJ |
| 100 kWh | 360 MJ |
| 150 kWh | 540 MJ |
| 200 kWh | 720 MJ |
| 250 kWh | 900 MJ |
| 500 kWh | 1,800 MJ |
| 1,000 kWh | 3,600 MJ |
Going the other way? See the megajoules to kilowatt-hours chart.
About the units
Kilowatt-hour (kWh)
A kilowatt-hour is 1,000 watt-hours, or 3.6 million joules. Electricity bills charge by the kWh.
Megajoule (MJ)
A megajoule is 1,000,000 joules, about the kinetic energy of a one-tonne car at 160 km/h.
Frequently asked questions
How many megajoules are in a kilowatt-hour?
There are 3.6 megajoules in a kilowatt-hour.
How many kilowatt-hours are in a megajoule?
There are 0.2777777778 kilowatt-hours in a megajoule.
How do you convert kilowatt-hours to megajoules?
To convert kilowatt-hours to megajoules, multiply the number of kilowatt-hours by 3.6.
What is 5 kilowatt-hours in megajoules?
5 kilowatt-hours equals 18 megajoules.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.