Convert megajoules to kilocalories
1 MJ = 239.005736138 kcal — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
239.005 736 138kcal
As a fraction: 125000/523
More converter tools
Readable results
Ranges, ± tolerances, feet/inches and clock durations work in the value field.
Unit picker
Export this result
1 MJ = 239.005736138 kcal
Show this value in all 39 energy & work units
- Petajoules PJ 1e-9
- Terajoules TJ 0.000 001
- Gigajoules GJ 0.001
- Megajoules MJ 1
- Kilojoules kJ 1000
- Joules J 1 000 000
- Millijoules mJ 1 000 000 000
- Microjoules µJ 1 000 000 000 000
- Nanojoules nJ 1 000 000 000 000 000
- Watt-hours Wh 277.777 777 778
- Kilowatt-hours kWh 0.277 777 777 778
- Megawatt-hours MWh 0.000 277 777 777 778
- Gigawatt-hours GWh 0.000 000 277 777 777 778
- Terawatt-hours TWh 2.77777777778e-10
- Calorie (thermochemical)s cal 239 005.736 138
- Kilocalories kcal 239.005 736 138
- Calorie (IT)s cal (IT) 238 845.896 627
- Kilocalorie (IT)s kcal (IT) 238.845 896 627
- British thermal units BTU 947.817 120 313
- BTU (thermochemical)s BTU (th) 948.451 652 677
- Million BTUs MMBTU 0.000 947 817 120 313
- Therm (US)s thm 0.009 480 434 279 73
- Therm (EC)s thm (EC) 0.009 478 169 879 13
- Electronvolts eV 6.24150907446e+24
- Kiloelectronvolts keV 6.24150907446e+21
- Megaelectronvolts MeV 6.24150907446e+18
- Gigaelectronvolts GeV 6 241 509 074 460 000
- Teraelectronvolts TeV 6 241 509 074 460
- Ergs erg 10 000 000 000 000
- Foot-pounds ft·lbf 737 562.149 277
- Inch-pounds in·lbf 8 850 745.791 33
- Foot-poundals ft·pdl 23 730 360.4042
- Horsepower-hours hp·h 0.372 506 135 999
- Tonne of TNTs t TNT 0.000 239 005 736 138
- Kiloton of TNTs kt TNT 0.000 000 239 005 736 138
- Megaton of TNTs Mt TNT 2.39005736138e-10
- Hartrees Eₕ 2.2937122784e+23
- Rydbergs Ry 4.58742455679e+23
- Quads quad 9.47817120313e-13
Every row is Megajoule (MJ) converted through the joule, in exact rational arithmetic.
How to convert megajoules to kilocalories
Multiply the number of megajoules by 239.005736138 to get kilocalories.
Kilocalorie: The Calorie on food labels — 1000 small calories.
Megajoule to Kilocalorie conversion table
| Megajoules (MJ) | Kilocalories (kcal) |
|---|---|
| 1 MJ | 239.005 74 |
| 2 MJ | 478.011 47 |
| 3 MJ | 717.017 21 |
| 5 MJ | 1195.0287 |
| 10 MJ | 2390.0574 |
| 20 MJ | 4780.1147 |
| 25 MJ | 5975.1434 |
| 50 MJ | 11 950.287 |
| 100 MJ | 23 900.574 |
| 250 MJ | 59 751.434 |
| 500 MJ | 119 502.87 |
| 1000 MJ | 239 005.74 |
Kilocalorie to Megajoule conversion table
| Kilocalories (kcal) | Megajoules (MJ) |
|---|---|
| 1 kcal | 0.004 184 |
| 2 kcal | 0.008 368 |
| 3 kcal | 0.012 552 |
| 5 kcal | 0.020 92 |
| 10 kcal | 0.041 84 |
| 20 kcal | 0.083 68 |
| 25 kcal | 0.1046 |
| 50 kcal | 0.2092 |
| 100 kcal | 0.4184 |
| 250 kcal | 1.046 |
| 500 kcal | 2.092 |
| 1000 kcal | 4.184 |
Frequently asked
How many kilocalories are in a megajoule?
One megajoule equals 239.0057361 kilocalories (MJ → kcal). That figure is exact, not rounded.
How do you convert megajoules to kilocalories?
Multiply the number of megajoules by 239.005736138 to get kilocalories.
What is 1 kcal in megajoules?
One kilocalorie is 0.004184 megajoules.
What is 10 MJ in kcal?
10 MJ = 2390.0574 kcal.
What exactly is a kilocalorie?
The Calorie on food labels — 1000 small calories.