Convert megajoule to joule
1 MJ = 1,000,000 J
1 MJ = 1,000,000 J
1 MJ in every energy unit
| electron volt | 6.2415e+24 eV |
| hartree | 2.2937e+23 Eh |
| kiloelectron volt | 6.2415e+21 keV |
| megaelectron volt | 6.2415e+18 MeV |
| gigaelectron volt | 6.2415e+15 GeV |
| nanojoule | 1.0000e+15 nJ |
| erg | 10,000,000,000,000 erg |
| teraelectron volt | 6,241,500,000,000 TeV |
| microjoule | 1,000,000,000,000 µJ |
| millijoule | 1,000,000,000 mJ |
| inch-pound | 8,850,700 in·lb |
| joule | 1,000,000 J |
| foot-pound | 737,560 ft⋅lb |
| calorie | 239,010 cal |
| calorie (International Table) | 238,850 cal IT |
| kilojoule | 1,000 kJ |
| BTU (thermochemical) | 948.45 BTU th |
| British thermal unit | 947.82 BTU |
| watt-hour | 277.78 Wh |
| kilocalorie | 239.01 kcal |
| megajoule | 1 MJ |
| horsepower-hour | 0.37251 hp·h |
| kilowatt-hour | 0.27778 kWh |
| therm | 0.0094782 therm |
| gigajoule | 0.001 GJ |
| million BTU | 0.00094782 MMBTU |
| megawatt-hour | 0.00027778 MWh |
| ton of TNT | 0.00023901 t TNT |
| tonne of oil equivalent | 0.000023885 toe |
| terajoule | 0.000001 TJ |
| gigawatt-hour | 2.7778e-07 GWh |
| kiloton of TNT | 2.3901e-07 kt TNT |
| petajoule | 1.0000e-09 PJ |
| terawatt-hour | 2.7778e-10 TWh |
| megaton of TNT | 2.3901e-10 Mt TNT |
| quad | 9.4782e-13 quad |
How the conversion works
Multiply by 1,000,000 to go from megajoule to joule, 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? joule to megajoule — 1 J = 0.000001 MJ.
megajoule to joule — common values
| 1 MJ | 1,000,000 J |
| 2 MJ | 2,000,000 J |
| 3 MJ | 3,000,000 J |
| 5 MJ | 5,000,000 J |
| 10 MJ | 10,000,000 J |
| 15 MJ | 15,000,000 J |
| 20 MJ | 20,000,000 J |
| 25 MJ | 25,000,000 J |
| 50 MJ | 50,000,000 J |
| 75 MJ | 75,000,000 J |
| 100 MJ | 100,000,000 J |
| 250 MJ | 250,000,000 J |
| 500 MJ | 500,000,000 J |
| 1000 MJ | 1,000,000,000 J |