Energy Converter
Result
... Kilowatt-hour = ... Megajoule
Result
... Kilowatt-hour
=
... Megajoule
Find the units to convert
Kilowatt-hour to Megajoule Converter
Use this page to convert kilowatt-hour values into megajoule, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 kWh = 3.6 MJ
1 MJ = 0.277777777777778 kWh
Example: 120 kWh = 432 MJ
Kilowatt-hour
A kilowatt-hour is the energy used by one kilowatt over one hour.
History: It became standard with electrical billing and metering.
Current use: Kilowatt-hours are used on utility bills and battery capacity discussions.
Also written as kWh, kilowatt hour, kilowatt hours, kilowatt-hours.
Megajoule
A megajoule equals one million joules.
History: It follows the SI mega prefix for scaling joules by powers of ten.
Current use: Megajoules are used in fuel values, engineering, and energy reporting.
Also written as MJ, megajoules.
Kilowatt-hour to Megajoule table
| Kilowatt-hour [kWh] | Megajoule [MJ] |
|---|
| 0.01 kWh | 0.036 MJ |
| 0.1 kWh | 0.36 MJ |
| 1 kWh | 3.6 MJ |
| 2 kWh | 7.2 MJ |
| 5 kWh | 18 MJ |
| 10 kWh | 36 MJ |
| 20 kWh | 72 MJ |
| 50 kWh | 180 MJ |
| 100 kWh | 360 MJ |
Frequently asked questions
How many Megajoule (MJ) are in one Kilowatt-hour (kWh)?
One Kilowatt-hour equals 3.6 Megajoule.
How do you convert Kilowatt-hour to Megajoule?
Multiply the Kilowatt-hour value by 3.6 to get the result in Megajoule.
How do you convert Megajoule back to Kilowatt-hour?
Multiply the Megajoule value by 0.277777777777778 to get back to Kilowatt-hour.
What is 120 Kilowatt-hour in Megajoule?
120 Kilowatt-hour equals 432 Megajoule.
