Convert kilocalorie to megajoule
1 kcal = 0.004184 MJ
1 kcal = 0.00418 MJ
1 kcal in every energy unit
| joule | 4,180 J |
| kilojoule | 4.18 kJ |
| megajoule | 0.00418 MJ |
| calorie | 1,000 cal |
| kilocalorie | 1 kcal |
| watt-hour | 1.16 Wh |
| kilowatt-hour | 0.00116 kWh |
| British thermal unit | 3.97 BTU |
| foot-pound | 3,090 ft⋅lb |
| electron volt | 2.61e+22 eV |
| kiloelectron volt | 2.61e+19 keV |
| megaelectron volt | 2.61e+16 MeV |
How the conversion works
Multiply by 0.004184 to go from kilocalorie 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 kilocalorie — 1 MJ = 239.0057361 kcal.
kilocalorie to megajoule — common values
| 1 kcal | 0.004184 MJ |
| 2 kcal | 0.008368 MJ |
| 3 kcal | 0.012552 MJ |
| 5 kcal | 0.02092 MJ |
| 10 kcal | 0.04184 MJ |
| 15 kcal | 0.06276 MJ |
| 20 kcal | 0.08368 MJ |
| 25 kcal | 0.1046 MJ |
| 50 kcal | 0.2092 MJ |
| 75 kcal | 0.3138 MJ |
| 100 kcal | 0.4184 MJ |
| 250 kcal | 1.046 MJ |
| 500 kcal | 2.092 MJ |
| 1000 kcal | 4.184 MJ |