Watt-hours to Megajoules
Convert Wh to MJ. 1 watt-hour = 0.0036 MJ, and 1 megajoule = 277.777777778 Wh.
Formula Multiply the value in watt-hours by 0.0036. Watt-hours to Megajoules table
1 watt-hour in every unit
| Joules | 3,600 | J |
|---|---|---|
| Kilojoules | 3.6 | kJ |
| Megajoules | 0.0036 | MJ |
| Calories | 860.420650096 | cal |
| Kilocalories | 0.860420650096 | kcal |
| Kilowatt-hours | 0.001 | kWh |
| British thermal units | 3.41214163313 | BTU |
| Foot-pounds | 2,655.2237374 | ft·lbf |
| Electronvolts | 2.246943e+22 | eV |
Food labels write kilocalories (kcal) as "Calories". Calories here are thermochemical: 1 cal = 4.184 J.
How to convert watt-hours to megajoules
Multiply the value in watt-hours by 0.0036.
For example, 10 Wh = 0.036 MJ, and 10 MJ = 2,777.77777778 Wh.
Frequently asked questions
How many megajoules are in one watt-hour?
1 watt-hour = 0.0036 MJ.
What is 10 Wh in MJ?
10 Wh = 0.036 MJ.
How do I convert MJ back to Wh?
Multiply the value in megajoules by 277.777777778. 1 megajoule = 277.777777778 Wh.
Watt-hours to Megajoules table
| Watt-hours (Wh) | Megajoules (MJ) |
|---|---|
| 0.1 | 0.00036 |
| 0.5 | 0.0018 |
| 1 | 0.0036 |
| 2 | 0.0072 |
| 3 | 0.0108 |
| 4 | 0.0144 |
| 5 | 0.018 |
| 6 | 0.0216 |
| 7 | 0.0252 |
| 8 | 0.0288 |
| 9 | 0.0324 |
| 10 | 0.036 |
| 15 | 0.054 |
| 20 | 0.072 |
| 25 | 0.09 |
| 30 | 0.108 |
| 50 | 0.18 |
| 75 | 0.27 |
| 100 | 0.36 |
| 250 | 0.9 |
| 500 | 1.8 |
| 1,000 | 3.6 |
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