Joules to Megajoules
Convert J to MJ. 1 joule = 0.000001 MJ, and 1 megajoule = 1,000,000 J.
Formula Divide the value in joules by 1,000,000. Joules to Megajoules table
1 joule in every unit
| Kilojoules | 0.001 | kJ |
|---|---|---|
| Megajoules | 0.000001 | MJ |
| Calories | 0.239005736138 | cal |
| Kilocalories | 0.000239005736 | kcal |
| Watt-hours | 0.000277777778 | Wh |
| Kilowatt-hours | 0.000000277778 | kWh |
| British thermal units | 0.00094781712 | BTU |
| Foot-pounds | 0.737562149277 | ft·lbf |
| Electronvolts | 6.241509e+18 | eV |
Food labels write kilocalories (kcal) as "Calories". Calories here are thermochemical: 1 cal = 4.184 J.
How to convert joules to megajoules
Divide the value in joules by 1,000,000.
For example, 10 J = 0.00001 MJ, and 10 MJ = 10,000,000 J.
Frequently asked questions
How many megajoules are in one joule?
1 joule = 0.000001 MJ.
What is 10 J in MJ?
10 J = 0.00001 MJ.
How do I convert MJ back to J?
Multiply the value in megajoules by 1,000,000. 1 megajoule = 1,000,000 J.
Joules to Megajoules table
| Joules (J) | Megajoules (MJ) |
|---|---|
| 0.1 | 0.0000001 |
| 0.5 | 0.0000005 |
| 1 | 0.000001 |
| 2 | 0.000002 |
| 3 | 0.000003 |
| 4 | 0.000004 |
| 5 | 0.000005 |
| 6 | 0.000006 |
| 7 | 0.000007 |
| 8 | 0.000008 |
| 9 | 0.000009 |
| 10 | 0.00001 |
| 15 | 0.000015 |
| 20 | 0.00002 |
| 25 | 0.000025 |
| 30 | 0.00003 |
| 50 | 0.00005 |
| 75 | 0.000075 |
| 100 | 0.0001 |
| 250 | 0.00025 |
| 500 | 0.0005 |
| 1,000 | 0.001 |
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