How to convert kilocalories per kilogram to megajoules per kilogram
MJ/kg = kcal/kg × 0.004184Multiply the value in kilocalories per kilogram by 0.004184. To go the other way, multiply by 239.0057361 (or divide by 0.004184).
A kilocalorie per kilogram is smaller than a megajoule per kilogram: it takes 239.0057361 kilocalories per kilogram to make one megajoule per kilogram.
Worked examples
- 1 kilocalorie per kilogram1 kcal/kg × 0.004184 = 0.004184 MJ/kg
- 5 kilocalories per kilogram5 kcal/kg × 0.004184 = 0.02092 MJ/kg
- 10 kilocalories per kilogram10 kcal/kg × 0.004184 = 0.04184 MJ/kg
- 20 kilocalories per kilogram20 kcal/kg × 0.004184 = 0.08368 MJ/kg
- 100 kilocalories per kilogram100 kcal/kg × 0.004184 = 0.4184 MJ/kg
Kilocalories per kilogram to megajoules per kilogram conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Kilocalories per kilogram (kcal/kg) | Megajoules per kilogram (MJ/kg) |
|---|---|
| 0.1 kcal/kg | 0.0004184 MJ/kg |
| 0.25 kcal/kg | 0.001046 MJ/kg |
| 0.5 kcal/kg | 0.002092 MJ/kg |
| 1 kcal/kg | 0.004184 MJ/kg |
| 2 kcal/kg | 0.008368 MJ/kg |
| 3 kcal/kg | 0.012552 MJ/kg |
| 4 kcal/kg | 0.016736 MJ/kg |
| 5 kcal/kg | 0.02092 MJ/kg |
| 6 kcal/kg | 0.025104 MJ/kg |
| 7 kcal/kg | 0.029288 MJ/kg |
| 8 kcal/kg | 0.033472 MJ/kg |
| 9 kcal/kg | 0.037656 MJ/kg |
| 10 kcal/kg | 0.04184 MJ/kg |
| Kilocalories per kilogram (kcal/kg) | Megajoules per kilogram (MJ/kg) |
|---|---|
| 12 kcal/kg | 0.050208 MJ/kg |
| 15 kcal/kg | 0.06276 MJ/kg |
| 20 kcal/kg | 0.08368 MJ/kg |
| 25 kcal/kg | 0.1046 MJ/kg |
| 30 kcal/kg | 0.12552 MJ/kg |
| 40 kcal/kg | 0.16736 MJ/kg |
| 50 kcal/kg | 0.2092 MJ/kg |
| 75 kcal/kg | 0.3138 MJ/kg |
| 100 kcal/kg | 0.4184 MJ/kg |
| 250 kcal/kg | 1.046 MJ/kg |
| 500 kcal/kg | 2.092 MJ/kg |
| 1,000 kcal/kg | 4.184 MJ/kg |
About the units
Kilocalorie per kilogram (kcal/kg)
The kilocalorie per kilogram (kcal/kg) is a unit of fuel efficiency by mass. One kilocalorie per kilogram equals 4,184 joules per kilogram (J/kg).
Megajoule per kilogram (MJ/kg)
The megajoule per kilogram (MJ/kg) is a unit of fuel efficiency by mass in the International System of Units (SI). One megajoule per kilogram equals 1,000,000 joules per kilogram (J/kg).
Frequently asked questions
How many megajoules per kilogram are in one kilocalorie per kilogram?
There are 0.004184 megajoules per kilogram in one kilocalorie per kilogram, and this value is exact by definition.
How do I convert kilocalories per kilogram to megajoules per kilogram?
Multiply the number of kilocalories per kilogram by 0.004184. For example, 10 kcal/kg × 0.004184 = 0.04184 MJ/kg.
How many kilocalories per kilogram are in one megajoule per kilogram?
One megajoule per kilogram equals 239.0057361 kilocalories per kilogram. That is the reverse factor, 1 ÷ 0.004184.
What is 10 kilocalories per kilogram in megajoules per kilogram?
10 kcal/kg = 0.04184 MJ/kg.
Is this kcal/kg to MJ/kg converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.