Watt-hours to Megajoules Converter
Convert watt-hours (Wh) to megajoules (MJ) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Result
- Megajoules
- 0.0036 MJ
How to use the watt-hours to megajoules converter
- Enter the watt-hours (Wh).
- The results update as you type, or press Calculate.
- Read the megajoules first, then the supporting figures below it.
Formula
Megajoules = watt-hours × 0.0036
Worked example
For example, with these inputs:
- Watt-hours (Wh): 1
the calculator returns:
- Megajoules: 0.0036 MJ
Watt-hours to Megajoules table
| Watt-hours | Megajoules |
|---|---|
| 1 Wh | 0.0036 MJ |
| 2 Wh | 0.0072 MJ |
| 5 Wh | 0.018 MJ |
| 10 Wh | 0.036 MJ |
| 20 Wh | 0.072 MJ |
| 25 Wh | 0.09 MJ |
| 50 Wh | 0.18 MJ |
| 100 Wh | 0.36 MJ |
| 250 Wh | 0.9 MJ |
| 500 Wh | 1.8 MJ |
| 1,000 Wh | 3.6 MJ |
About this conversion
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Frequently asked questions
How many megajoules are in one watt-hour?
1 Wh = 0.0036 MJ.
How do I convert Wh to MJ?
Megajoules = watt-hours × 0.0036.