Convert Watt-hours (Wh) to Megajoules (MJ)
Enter a value below to convert Watt-hours (Wh) to Megajoules (MJ).
Conversion:
1 Watt-hours (Wh) = 0.0036 Megajoules (MJ)
How to Convert Watt-hours (Wh) to Megajoules (MJ)
1 wh = 0.0036 mj
1 mj = 277.77777778 wh
Example: convert 15 Watt-hours (Wh) to Megajoules (MJ):
25 wh = 0.09 mj
Watt-hours (Wh) to Megajoules (MJ) Conversion Table
| Watt-hours (Wh) | Megajoules (MJ) |
|---|---|
| 0.01 wh | 0.000036 mj |
| 0.1 wh | 0.00036 mj |
| 1 wh | 0.0036 mj |
| 2 wh | 0.0072 mj |
| 3 wh | 0.0108 mj |
| 5 wh | 0.018 mj |
| 10 wh | 0.036 mj |
| 20 wh | 0.072 mj |
| 50 wh | 0.18 mj |
| 100 wh | 0.36 mj |
| 1000 wh | 3.6 mj |
Watt-hours (Wh)
Definition
A watt-hour (Wh) is a unit of energy equal to the work done by one watt of power sustained for one hour. It equals 3,600 joules.
History
The watt-hour emerged with the development of electrical power systems in the late 19th century. It provided a practical way to measure and bill for electrical energy consumption.
Current use
Watt-hours are used for small battery capacities (e.g., phone batteries, portable electronics) and as a base unit for kilowatt-hours used in household electricity metering.
Megajoules (MJ)
Definition
A megajoule (MJ) is a unit of energy equal to 1,000,000 joules (10⁶ J). It is used to express large-scale energy quantities.
History
The megajoule became commonly used with the growth of industrial energy measurement in the 20th century, particularly for fuel energy content and large engineering systems.
Current use
Megajoules are used to express the energy content of fuels (e.g., natural gas, gasoline), industrial process energy, and large-scale thermal systems in engineering and environmental science.