Convert kWh to megajoules
Kilowatt hours to megajoules. Enter a value to convert, or use the kWh to megajoules chart further down the page.
1 kilowatt hour equals 3.6 megajoules. Going the other way, 1 megajoule = 0.2777777778 kilowatt hours.
How to convert kWh to megajoules
To convert kilowatt hours to megajoules, multiply the kilowatt hour value by 3.6. You can also divide by 0.2777777778 to get the same answer.
MJ = kWh × 3.6
Worked example
Convert 15 kWh to megajoules:
15 kWh = 54 MJ
kWh to megajoules conversion chart
Use this kWh to megajoules table for quick reference without typing anything.
| kilowatt hours (kWh) | megajoules (MJ) |
|---|---|
| 0.01 kWh | 0.036 MJ |
| 0.1 kWh | 0.36 MJ |
| 1 kWh | 3.6 MJ |
| 2 kWh | 7.2 MJ |
| 3 kWh | 10.8 MJ |
| 5 kWh | 18 MJ |
| 10 kWh | 36 MJ |
| 20 kWh | 72 MJ |
| 50 kWh | 180 MJ |
| 100 kWh | 360 MJ |
| 1,000 kWh | 3,600 MJ |
What is a kilowatt hour?
A kilowatt hour is the energy used by a 1,000-watt device running for one hour: exactly 3.6 megajoules. It is the unit on electricity bills.
What is a megajoule?
The megajoule (MJ) is a unit of energy equal to 1000000 joules.
Frequently asked questions
How many megajoules are in a kilowatt hour?
1 kWh equals 3.6 megajoules. Going the other way, 1 megajoules is 0.2777777778 kWh.
How do you convert kWh to megajoules?
To convert kilowatt hours to megajoules, multiply the kilowatt hour value by 3.6. You can also divide by 0.2777777778 to get the same answer.
What is 10 kWh in megajoules?
10 kWh equals 36 megajoules. The conversion chart on this page lists the other values people look up most often.
Related energy conversions
Convert kWh to other units
- megajoules to kWh
- kWh to joules
- kWh to kilojoules
- kWh to calories
- kWh to kilocalories
- kWh to Wh
- kWh to BTU
- kWh to foot pounds
Convert other units to megajoules
Popular conversions
cm to inchesinches to cmkg to lbslbs to kgCelsius to FahrenheitFahrenheit to Celsiusmm to inchesinches to mmkm to milesmiles to kmmeters to feetfeet to meterscm to feetfeet to inchesinches to feetml to fl ozfl oz to mlliters to gallonsgallons to literscups to ml