Convert Kilojoules per Kilogram to Calories per Gram
1 kilojoule per kilogram (kJ/kg) = 0.2388458966 calories per gram (cal/g). 1 cal/g = 4.1868 kJ/kg. Example: 15 kJ/kg = 15 × 0.2388458966 = 3.582688449 cal/g.
Also searched as kilojoules per kilogram to cal/g, kilojoules per kilogram in cal/g, kilojoules per kilogram into calories per gram, kJ/kg to cal/g, kJ/kg in calories per gram, kJ/kg into calorie per gram, kilojoule per kilogram to calorie per gram, kJ/kg to calories per gram converter and how many calories per gram in a kilojoule per kilogram.
1 kJ/kg = 0.2388458966 cal/g
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilojoule per kilogram to calorie per gram converter to paste a column from Excel.
How to Convert Kilojoule per Kilogram to Calorie per Gram
- 1 kJ/kg = 0.2388458966 cal/g
- 1 cal/g = 4.1868 kJ/kg
- Example: convert 15 kJ/kg to cal/g: 15 kJ/kg = 15 × 0.2388458966 cal/g = 3.582688449 cal/g
Reference conditions. cal/g: International Table calorie (4.1868 J).
Formula
cal/g = kJ/kg × 0.2388458966275
or cal/g = kJ/kg ÷ 4.1868
Derivation from SI units:
- 1 kJ/kg = 1000 J/kg.
- 1 cal_IT/g = 4186.8 J/kg = 1 kcal/kg.
- 1 kJ/kg = 1000 J/kg ÷ 4186.8 J/kg per cal/g = 0.2388458966275 cal/g
Both units are defined exactly, so the factor is exact. Kilojoule per Kilogram definition: kilojoule per kilogram; Calorie per Gram definition: calorie per gram.
Worked examples
- A reading of 334 kJ/kg converts to 79.77452947 cal/g.
334 kJ/kg × 0.2388458966 = 79.77452947 cal/g - A value of 2257 kJ/kg is 539.0751887 cal/g.
2257 kJ/kg × 0.2388458966 = 539.0751887 cal/g
Kilojoule per Kilogram to Calorie per Gram conversion table
| Kilojoules per Kilogram (kJ/kg) | Calories per Gram (cal/g) |
|---|---|
| 1 kJ/kg | 0.2388458966 cal/g |
| 10 kJ/kg | 2.388458966 cal/g |
| 100 kJ/kg | 23.88458966 cal/g |
| 334 kJ/kg | 79.77452947 cal/g |
| 419 kJ/kg | 100.0764307 cal/g |
| 1000 kJ/kg | 238.8458966 cal/g |
| 2257 kJ/kg | 539.0751887 cal/g |
| 2676 kJ/kg | 639.1516194 cal/g |
| 3000 kJ/kg | 716.5376899 cal/g |
| 3500 kJ/kg | 835.9606382 cal/g |
Where it's used
Kilojoules per Kilogram are used for steam tables (h, u, latent heat), while calories per gram appear in latent heat problems in CGS units. Both measure specific energy: enthalpy, latent heat and heating value per mass, so the conversion is a fixed factor.
Kilojoule per Kilogram to other specific energy units
| Conversion | 1 kJ/kg equals |
|---|---|
| kilojoule per kilogram to calorie per gram | 0.2388458966 cal/g |
| 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 kilocalorie per kilogram | 0.2388458966 kcal/kg |
| kilojoule per kilogram to joule per kilogram | 1000 J/kg |
| 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 calories per gram are in 1 kilojoule per kilogram?
1 kJ/kg = 0.2388458966 cal/g.
How do I convert kilojoules per kilogram to calories per gram?
Multiply the value in kJ/kg by 0.2388458966, or divide it by 4.1868. For example, 15 kJ/kg × 0.2388458966 = 3.582688449 cal/g.
Is the kJ/kg to cal/g 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 Calories per Gram. Retrieved October 29, 2026, from https://scientificconverters.com/specific-energy/kilojoules-per-kilogram-to-calories-per-gram/
IEEE
Scientific Converters, "Convert Kilojoules per Kilogram to Calories per Gram," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/specific-energy/kilojoules-per-kilogram-to-calories-per-gram/