Convert joule to megajoule
1 J = 0.000001 MJ
1 J = 0.000001 MJ
1 J in every energy unit
| joule | 1 J |
| kilojoule | 0.001 kJ |
| megajoule | 0.000001 MJ |
| calorie | 0.239 cal |
| kilocalorie | 0.000239 kcal |
| watt-hour | 0.000278 Wh |
| kilowatt-hour | 2.78e-07 kWh |
| British thermal unit | 0.000948 BTU |
| foot-pound | 0.738 ft⋅lb |
| electron volt | 6.24e+18 eV |
| kiloelectron volt | 6.24e+15 keV |
| megaelectron volt | 6,240,000,000,000 MeV |
How the conversion works
Multiply by 0.000001 to go from joule to megajoule, or divide by it to go back. Every conversion on this site routes through the SI value (J) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? megajoule to joule — 1 MJ = 1,000,000 J.
joule to megajoule — common values
| 1 J | 0.000001 MJ |
| 2 J | 0.000002 MJ |
| 3 J | 0.000003 MJ |
| 5 J | 0.000005 MJ |
| 10 J | 0.00001 MJ |
| 15 J | 0.000015 MJ |
| 20 J | 0.00002 MJ |
| 25 J | 0.000025 MJ |
| 50 J | 0.00005 MJ |
| 75 J | 0.000075 MJ |
| 100 J | 0.0001 MJ |
| 250 J | 0.00025 MJ |
| 500 J | 0.0005 MJ |
| 1000 J | 0.001 MJ |