Megajoules to Watt-hours Conversion
Enter the energy in megajoules below to get the value converted to watt-hours.
How to Convert Megajoules to Watt-hours
To convert a megajoule measurement to a watt-hour measurement, multiply the energy by the conversion ratio. One megajoule is equal to 277.777778 watt-hours, so use this simple formula to convert:
The energy in watt-hours is equal to the megajoules multiplied by 277.777778.
Megajoules and watt-hours are both units used to measure energy. Keep reading to learn more about each unit of measure.
Megajoules
One megajoule is equal to 1,000,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.
The megajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "mega" is the prefix for 106. Megajoules can be abbreviated as MJ, for example 1 megajoule can be written as 1 MJ.
Watt-hours
The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.
Watt-hours are usually abbreviated as Wh, although the formally adopted expression is W·h. The abbreviation W h is also sometimes used. For example, 1 watt-hour can be written as 1 Wh, 1 W·h, or 1 W h.
In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.[1]
Megajoule to Watt-hour Conversion Table
| Megajoules | Watt-hours |
|---|---|
| 1 MJ | 277.78 Wh |
| 2 MJ | 555.56 Wh |
| 3 MJ | 833.33 Wh |
| 4 MJ | 1,111 Wh |
| 5 MJ | 1,389 Wh |
| 6 MJ | 1,667 Wh |
| 7 MJ | 1,944 Wh |
| 8 MJ | 2,222 Wh |
| 9 MJ | 2,500 Wh |
| 10 MJ | 2,778 Wh |
| 11 MJ | 3,056 Wh |
| 12 MJ | 3,333 Wh |
| 13 MJ | 3,611 Wh |
| 14 MJ | 3,889 Wh |
| 15 MJ | 4,167 Wh |
| 16 MJ | 4,444 Wh |
| 17 MJ | 4,722 Wh |
| 18 MJ | 5,000 Wh |
| 19 MJ | 5,278 Wh |
| 20 MJ | 5,556 Wh |
| 21 MJ | 5,833 Wh |
| 22 MJ | 6,111 Wh |
| 23 MJ | 6,389 Wh |
| 24 MJ | 6,667 Wh |
| 25 MJ | 6,944 Wh |
| 26 MJ | 7,222 Wh |
| 27 MJ | 7,500 Wh |
| 28 MJ | 7,778 Wh |
| 29 MJ | 8,056 Wh |
| 30 MJ | 8,333 Wh |
| 31 MJ | 8,611 Wh |
| 32 MJ | 8,889 Wh |
| 33 MJ | 9,167 Wh |
| 34 MJ | 9,444 Wh |
| 35 MJ | 9,722 Wh |
| 36 MJ | 10,000 Wh |
| 37 MJ | 10,278 Wh |
| 38 MJ | 10,556 Wh |
| 39 MJ | 10,833 Wh |
| 40 MJ | 11,111 Wh |
References
- Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf
