Megajoule to Kilowatt-hour Converter
1 megajoule is about 0.2777777778 kilowatt-hours. Convert megajoules (MJ) to kilowatt-hours (kWh) below: type a value and the result updates as you type.
MJ to kWh calculator
Result
Megajoule to Kilowatt-hour conversion
1 MJ ≈ 0.2777777778 kWhone megajoule in kilowatt-hours
1 kWh = 3.6 MJone kilowatt-hour in megajoules
Megajoule (MJ): Exactly one million joules.
Kilowatt-hour (kWh): Exactly 3 600 000 joules (3.6 megajoules).
Source:SI Brochure, 9th edition (BIPM, 2019)
How to convert megajoules to kilowatt-hours
To convert megajoules to kilowatt-hours, divide the number of megajoules by 3.6.
Formula
kWh = MJ ÷ 3.6
Examples
- 5 MJ = 5 ÷ 3.6 ≈ 1.388888889 kWh
- 25 MJ = 25 ÷ 3.6 ≈ 6.944444444 kWh
- 100 MJ = 100 ÷ 3.6 ≈ 27.77777778 kWh
Megajoule to Kilowatt-hour conversion table
| Megajoule (MJ) | Kilowatt-hour (kWh) |
|---|---|
| 0.1 MJ | 0.02777777778 kWh |
| 0.5 MJ | 0.1388888889 kWh |
| 1 MJ | 0.2777777778 kWh |
| 2 MJ | 0.5555555556 kWh |
| 3 MJ | 0.8333333333 kWh |
| 5 MJ | 1.388888889 kWh |
| 10 MJ | 2.777777778 kWh |
| 20 MJ | 5.555555556 kWh |
| 25 MJ | 6.944444444 kWh |
| 50 MJ | 13.88888889 kWh |
| 100 MJ | 27.77777778 kWh |
| 250 MJ | 69.44444444 kWh |
| 500 MJ | 138.8888889 kWh |
| 1000 MJ | 277.7777778 kWh |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many kilowatt-hours are in one megajoule?
- One megajoule is about 0.2777777778 kilowatt-hours.
- How do I convert kilowatt-hours to megajoules?
- To convert kilowatt-hours to megajoules, multiply the number of kilowatt-hours by 3.6. The formula is MJ = kWh × 3.6.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 3.6 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a megajoule or a kilowatt-hour?
- A kilowatt-hour is 3.6 times larger than a megajoule. In other words, a megajoule is about 0.2777777778 of a kilowatt-hour.