ENERGY CONVERSION
Kilowatt-hour to Megajoule.
Convert kilowatt-hour (kWh) to megajoule (MJ), with the math explained.
THE MATH, MADE SIMPLE
How to convert kilowatt-hour to megajoule
Multiply your kilowatt-hour value by 3.6 to get the equivalent in megajoule. Both units are normalized through the joule.
MJ = kWh × 3.610 kWh = 36 MJ
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
kWh to MJ conversion table
| Kilowatt-hour (kWh) | Megajoule (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 |
| 500 kWh | 1,800 MJ |
| 1,000 kWh | 3,600 MJ |
About the kilowatt-hour
The kilowatt-hour (kWh) is a unit of energy. One kilowatt-hour equals 3,600,000 joule (base unit) in this calculator.
All kilowatt-hour conversionsAbout the megajoule
The megajoule (MJ) is a unit of energy. One megajoule equals 1,000,000 joule (base unit) in this calculator.
All megajoule conversionsCommon questions
What is 1 kWh in MJ?
One kilowatt-hour equals 3.6 MJ. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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