Kilocalories per kilogram to megajoules per kilogram
Type a value in kcal/kg to get it in MJ/kg instantly.
0.04184MJ/kg
Nothing on our list is smaller: a lithium battery is 22× higher. To match a 60 kWh car battery you would need about 5,163 kg of it.
Convert the other way: MJ/kg to kcal/kg
What it means
How much energy per kilogram?
Figures are the higher heating value by mass. They ignore the weight of the tank, engine or fuel cell around them.
The math
How to convert kcal/kg to MJ/kg
To convert kilocalories per kilogram to megajoules per kilogram, multiply by 0.004184.
Example: 10 kcal/kg × 0.004184 = 0.04184 MJ/kg.
In the other direction, 1 MJ/kg = 239.006 kcal/kg.
Every unit
Your energy density in every unit
Tables
kcal/kg to MJ/kg conversion table
| kcal/kg | MJ/kg |
|---|---|
| 0.5 kcal/kg | 0.002092 MJ/kg |
| 1 kcal/kg | 0.004184 MJ/kg |
| 2 kcal/kg | 0.008368 MJ/kg |
| 5 kcal/kg | 0.02092 MJ/kg |
| 10 kcal/kg | 0.04184 MJ/kg |
| 16 kcal/kg | 0.066944 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 |
| 46 kcal/kg | 0.192464 MJ/kg |
| 55 kcal/kg | 0.23012 MJ/kg |
| 120 kcal/kg | 0.50208 MJ/kg |
MJ/kg to kcal/kg conversion table
| MJ/kg | kcal/kg |
|---|---|
| 0.5 MJ/kg | 119.503 kcal/kg |
| 1 MJ/kg | 239.006 kcal/kg |
| 2 MJ/kg | 478.011 kcal/kg |
| 5 MJ/kg | 1,195.03 kcal/kg |
| 10 MJ/kg | 2,390.06 kcal/kg |
| 16 MJ/kg | 3,824.09 kcal/kg |
| 20 MJ/kg | 4,780.11 kcal/kg |
| 25 MJ/kg | 5,975.14 kcal/kg |
| 30 MJ/kg | 7,170.17 kcal/kg |
| 40 MJ/kg | 9,560.23 kcal/kg |
| 46 MJ/kg | 10,994.3 kcal/kg |
| 55 MJ/kg | 13,145.3 kcal/kg |
| 120 MJ/kg | 28,680.7 kcal/kg |
Quick answers
Quick answers
- How many MJ/kg is 1 kcal/kg?
- 1 kcal/kg is 0.004184 MJ/kg.
- How many MJ/kg is 10 kcal/kg?
- 10 kcal/kg is 0.04184 MJ/kg.
The units
About these units
Kilocalories per kilogram (kcal/kg)
The food and fuel calorie form: 1 kcal/kg is 4.184 kJ/kg.
Megajoules per kilogram (MJ/kg)
The standard unit for fuels. Petrol is 46, wood 16.
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