Kilocalorie per Kilogram (kcal/kg)
Kilocalories per kilogram are how Indian coal grades (GCV bands) and older boiler texts state heating values: G-grade coal is 4300–4600 kcal/kg, and 1 kcal/kg = 4.1868 kJ/kg.
Symbol: kcal/kg
Quantity: specific energy: enthalpy, latent heat and heating value per mass
SI relation: 1 kcal/kg = 4186.8 J/kg (exact)
Derivation: 1 kcal_IT/kg = 4186.8 J/kg.
Exact: yes, by definition
Reference conditions. International Table calorie (4.1868 J).
Same quantity as calorie per gram (cal/g) : the factor between them is exactly 1.
Typical uses
- Indian coal grading (GCV in kcal/kg)
- Boiler and furnace heat balances
- Food energy density
Convert kilocalories per kilogram to other units
| Conversion | 1 kcal/kg equals | Reverse |
|---|---|---|
| kilocalorie per kilogram to kilojoule per kilogram | 4.1868 kJ/kg | kilojoule per kilogram to kilocalorie per kilogram |
| kilocalorie per kilogram to megajoule per kilogram | 0.0041868 MJ/kg | megajoule per kilogram to kilocalorie per kilogram |
| kilocalorie per kilogram to BTU per pound | 1.8 BTU/lb | BTU per pound to kilocalorie per kilogram |
| kilocalorie per kilogram to joule per kilogram | 4186.8 J/kg | joule per kilogram to kilocalorie per kilogram |
| kilocalorie per kilogram to calorie per gram | 1 cal/g | calorie per gram to kilocalorie per kilogram |
| kilocalorie per kilogram to kilowatt-hour per kilogram | 0.001163 kWh/kg | kilowatt-hour per kilogram to kilocalorie per kilogram |
| kilocalorie per kilogram to joule per gram | 4.1868 J/g | joule per gram to kilocalorie per kilogram |
Open the Specific Enthalpy Converter (kJ/kg, BTU/lb, kcal/kg) to convert any value between all units.
Sources
- 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). Kilocalorie per Kilogram (kcal/kg). Retrieved October 29, 2026, from https://scientificconverters.com/units/kilocalorie-per-kilogram/
IEEE
Scientific Converters, "Kilocalorie per Kilogram (kcal/kg)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/kilocalorie-per-kilogram/