Convert Kilojoules per Kilogram to Kilocalories per Kilogram
1 kilojoule per kilogram (kJ/kg) = 0.2388458966 kilocalories per kilogram (kcal/kg). 1 kcal/kg = 4.1868 kJ/kg. Example: 25000 kJ/kg = 25000 × 0.2388458966 = 5971.147416 kcal/kg.
Also searched as kilojoules per kilogram to kcal/kg, kilojoules per kilogram in kcal/kg, kilojoules per kilogram into kilocalories per kilogram, kJ/kg to kcal/kg, kJ/kg in kilocalories per kilogram, kJ/kg into kilocalorie per kilogram, kilojoule per kilogram to kilocalorie per kilogram, kJ/kg to kilocalories per kilogram converter and how many kilocalories per kilogram in a kilojoule per kilogram.
1 kJ/kg = 0.2388458966 kcal/kg
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilojoule per kilogram to kilocalorie per kilogram converter to paste a column from Excel.
How to Convert Kilojoule per Kilogram to Kilocalorie per Kilogram
- 1 kJ/kg = 0.2388458966 kcal/kg
- 1 kcal/kg = 4.1868 kJ/kg
- Example: convert 25000 kJ/kg to kcal/kg: 25000 kJ/kg = 25000 × 0.2388458966 kcal/kg = 5971.147416 kcal/kg
Reference conditions. kcal/kg: International Table calorie (4.1868 J).
Formula
kcal/kg = kJ/kg × 0.2388458966275
or kcal/kg = kJ/kg ÷ 4.1868
Derivation from SI units:
- 1 kJ/kg = 1000 J/kg.
- 1 kcal_IT/kg = 4186.8 J/kg.
- 1 kJ/kg = 1000 J/kg ÷ 4186.8 J/kg per kcal/kg = 0.2388458966275 kcal/kg
Both units are defined exactly, so the factor is exact. Kilojoule per Kilogram definition: kilojoule per kilogram; Kilocalorie per Kilogram definition: kilocalorie per kilogram.
Worked examples
- A fuel of 25000 kJ/kg is 5971.147416 kcal/kg.
25000 kJ/kg × 0.2388458966 = 5971.147416 kcal/kg - A latent heat of 2257 kJ/kg is 539.0751887 kcal/kg.
2257 kJ/kg × 0.2388458966 = 539.0751887 kcal/kg
Kilojoule per Kilogram to Kilocalorie per Kilogram conversion table
| Kilojoules per Kilogram (kJ/kg) | Kilocalories per Kilogram (kcal/kg) |
|---|---|
| 1 kJ/kg | 0.2388458966 kcal/kg |
| 10 kJ/kg | 2.388458966 kcal/kg |
| 100 kJ/kg | 23.88458966 kcal/kg |
| 334 kJ/kg | 79.77452947 kcal/kg |
| 419 kJ/kg | 100.0764307 kcal/kg |
| 1000 kJ/kg | 238.8458966 kcal/kg |
| 2257 kJ/kg | 539.0751887 kcal/kg |
| 2676 kJ/kg | 639.1516194 kcal/kg |
| 3000 kJ/kg | 716.5376899 kcal/kg |
| 3500 kJ/kg | 835.9606382 kcal/kg |
Where it's used
Heating values and enthalpies in kJ/kg are converted to kcal/kg for Indian boiler and coal practice. Divide by 4.1868.
Kilojoule per Kilogram to other specific energy units
| Conversion | 1 kJ/kg equals |
|---|---|
| kilojoule per kilogram to kilocalorie per kilogram | 0.2388458966 kcal/kg |
| kilojoule per kilogram to megajoule per kilogram | 0.001 MJ/kg |
| kilojoule per kilogram to BTU per pound | 0.4299226139 BTU/lb |
| kilojoule per kilogram to joule per kilogram | 1000 J/kg |
| kilojoule per kilogram to calorie per gram | 0.2388458966 cal/g |
| kilojoule per kilogram to kilowatt-hour per kilogram | 0.0002777777778 kWh/kg |
| kilojoule per kilogram to joule per gram | 1 J/g |
Frequently asked questions
How many kcal/kg is 1 kJ/kg?
1 kJ/kg = 0.2388458966 kcal/kg.
How many kilocalories per kilogram are in 1 kilojoule per kilogram?
1 kJ/kg = 0.2388458966 kcal/kg.
How do I convert kilojoules per kilogram to kilocalories per kilogram?
Multiply the value in kJ/kg by 0.2388458966, or divide it by 4.1868. For example, 25000 kJ/kg × 0.2388458966 = 5971.147416 kcal/kg.
Is the kJ/kg to kcal/kg conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units with special names).
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "calorie_IT per gram".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilojoules per Kilogram to Kilocalories per Kilogram. Retrieved October 29, 2026, from https://scientificconverters.com/specific-energy/kilojoules-per-kilogram-to-kilocalories-per-kilogram/
IEEE
Scientific Converters, "Convert Kilojoules per Kilogram to Kilocalories per Kilogram," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/specific-energy/kilojoules-per-kilogram-to-kilocalories-per-kilogram/