Convert megajoule to kilojoule
1 MJ = 1,000 kJ
1 MJ = 1,000 kJ
1 MJ in every energy unit
| joule | 1,000,000 J |
| kilojoule | 1,000 kJ |
| megajoule | 1 MJ |
| calorie | 239,000 cal |
| kilocalorie | 239 kcal |
| watt-hour | 278 Wh |
| kilowatt-hour | 0.278 kWh |
| British thermal unit | 948 BTU |
| foot-pound | 738,000 ft⋅lb |
| electron volt | 6.24e+24 eV |
| kiloelectron volt | 6.24e+21 keV |
| megaelectron volt | 6.24e+18 MeV |
How the conversion works
Multiply by 1,000 to go from megajoule to kilojoule, 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? kilojoule to megajoule — 1 kJ = 0.001 MJ.
megajoule to kilojoule — common values
| 1 MJ | 1,000 kJ |
| 2 MJ | 2,000 kJ |
| 3 MJ | 3,000 kJ |
| 5 MJ | 5,000 kJ |
| 10 MJ | 10,000 kJ |
| 15 MJ | 15,000 kJ |
| 20 MJ | 20,000 kJ |
| 25 MJ | 25,000 kJ |
| 50 MJ | 50,000 kJ |
| 75 MJ | 75,000 kJ |
| 100 MJ | 100,000 kJ |
| 250 MJ | 250,000 kJ |
| 500 MJ | 500,000 kJ |
| 1000 MJ | 1,000,000 kJ |