Convert megajoule to kilowatt-hour
Please provide values below to convert megajoule [MJ] to kilowatt-hour [kW*h], or Convert kilowatt-hour to megajoule.
1 MJ = 0.277777777778 kW*h. To convert megajoule to kilowatt-hour, multiply the value by 0.277777777778; to go the other way, divide by it (1 kW*h = 3.6 MJ). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 MJ = 0.277777777778 kW*h
- 1 kW*h = 3.6 MJ
- 10 MJ = 2.77777777778 kW*h
- 100 MJ = 27.7777777778 kW*h
How to Convert Megajoule to Kilowatt-Hour
1 MJ = 0.277777777777778 kW*h
Example: convert 15 MJ to kW*h:
15 MJ = 15 × 0.277777777777778 kW*h = 4.16666666666667 kW*h
Megajoule to Kilowatt-Hour Conversion Table
| megajoule | kilowatt-hour |
|---|---|
| 1 MJ | 0.277777777778 kW*h |
| 2 MJ | 0.555555555556 kW*h |
| 3 MJ | 0.833333333333 kW*h |
| 5 MJ | 1.38888888889 kW*h |
| 10 MJ | 2.77777777778 kW*h |
| 20 MJ | 5.55555555556 kW*h |
| 50 MJ | 13.8888888889 kW*h |
| 100 MJ | 27.7777777778 kW*h |
| 500 MJ | 138.888888889 kW*h |
| 1000 MJ | 277.777777778 kW*h |
Megajoule
A megajoule (MJ) is a unit of energy equal to one million joules.
History/Origin
The megajoule was introduced as part of the metric system to measure large amounts of energy, especially in scientific and engineering contexts, aligning with the SI units established in the 20th century.
Current Use
The megajoule is used in fields such as physics, engineering, and energy industries to quantify large energy quantities, including in energy production, consumption, and scientific research.
Kilowatt-Hour
A kilowatt-hour (kW·h) is a unit of energy equal to the energy transferred or used when a power of one kilowatt is sustained for one hour.
History/Origin
The kilowatt-hour originated in the late 19th century with the development of electrical power systems, becoming a standard unit for measuring electrical energy consumption and billing.
Current Use
It is widely used today in electricity billing, energy consumption monitoring, and in various engineering and scientific applications to quantify electrical energy usage.
Frequently Asked Questions
What is 1 megajoule in kilowatt-hour?
1 megajoule (MJ) = 0.277777777778 kilowatt-hour (kW*h).
How do you convert megajoule to kilowatt-hour?
Multiply the megajoule value by 0.277777777778. For example, 25 MJ × 0.277777777778 = 6.94444444444 kW*h.
What is 10 megajoule in kilowatt-hour?
10 MJ = 2.77777777778 kW*h.
Which unit is larger, the megajoule or the kilowatt-hour?
The kilowatt-hour is the larger unit: 1 MJ equals only 0.277777777778 kW*h.