Fuel Efficiency - Mass conversion
1 joule/kilogram (J/kg) equals 0.000238845897 kilocalorie/kilogram (kcal/kg). Enter any value below to convert from J/kg to kcal/kg.
Enter a value and choose units. Results update instantly.
1 J/kg = 0.0002388459 kcal/kg
| Unit | Value |
|---|---|
| Joule/kilogram J/kg | 1 |
| Kilojoule/kilogram kJ/kg | 0.001 |
| Calorie/gram cal/g | 0.0002388459 |
| Kilocalorie/kilogram kcal/kg | 0.0002388459 |
| Btu/pound Btu/lb | 0.0004299226 |
| Btu/kilogram Btu/kg | 0.0009478134 |
Formula
Use this relationship for a direct conversion:
2 J/kg = 0.0004776918 kcal/kg.
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.
Quick reference
| Joule/kilogram (J/kg) | Kilocalorie/kilogram (kcal/kg) |
|---|---|
| 0.01 | 0.0000023885 |
| 0.1 | 0.0000238846 |
| 1 | 0.0002388459 |
| 2 | 0.0004776918 |
| 5 | 0.0011942295 |
| 10 | 0.002388459 |
| 25 | 0.0059711474 |
| 50 | 0.0119422948 |
| 100 | 0.0238845897 |
| 1,000 | 0.2388458966 |
From unit
Joule/kilogram (J/kg) is the base unit of Fuel Efficiency - Mass in the International System of Units (SI).
Symbol: J/kg
To unit
Kilocalorie/kilogram (kcal/kg) is a unit of Fuel Efficiency - Mass. 1 kcal/kg = 4,186.8 J/kg
Symbol: kcal/kg
Keep converting
Source
The SI framework is checked against NIST Guide for the Use of the International System of Units; conventional factors come from the extended factor inventory. Calculations use full internal precision before display rounding.
View the complete fuel efficiency - mass converterQuestions
Use the formula kcal/kg = J/kg x 0.000238845897. 1 joule/kilogram (J/kg) equals 0.000238845897 kilocalorie/kilogram (kcal/kg).
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.
