Convert BTU per Pound to Kilocalories per Kilogram
1 BTU per pound (BTU/lb) = 0.5555555556 kilocalories per kilogram (kcal/kg). 1 kcal/kg = 1.8 BTU/lb. Example: 15 BTU/lb = 15 × 0.5555555556 = 8.333333333 kcal/kg.
Also searched as BTU per pound to kcal/kg, BTU per pound in kcal/kg, BTU per pound into kilocalories per kilogram, BTU/lb to kcal/kg, BTU/lb in kilocalories per kilogram, BTU/lb into kilocalorie per kilogram, BTU per pound to kilocalorie per kilogram, BTU/lb to kilocalories per kilogram converter and how many kilocalories per kilogram in a BTU per pound.
1 BTU/lb = 0.5555555556 kcal/kg
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk BTU per pound to kilocalorie per kilogram converter to paste a column from Excel.
How to Convert BTU per Pound to Kilocalorie per Kilogram
- 1 BTU/lb = 0.5555555556 kcal/kg
- 1 kcal/kg = 1.8 BTU/lb
- Example: convert 15 BTU/lb to kcal/kg: 15 BTU/lb = 15 × 0.5555555556 kcal/kg = 8.333333333 kcal/kg
Reference conditions. kcal/kg: International Table calorie (4.1868 J).
Formula
kcal/kg = BTU/lb × 0.5555555555556
or kcal/kg = BTU/lb ÷ 1.8
Derivation from SI units:
- 1 BTU_IT/lb = 1055.05585262 J ÷ 0.45359237 kg = 2326 J/kg exactly.
- 1 kcal_IT/kg = 4186.8 J/kg.
- 1 BTU/lb = 2326 J/kg ÷ 4186.8 J/kg per kcal/kg = 0.5555555555556 kcal/kg
Both units are defined exactly, so the factor is exact. BTU per Pound definition: BTU per pound; Kilocalorie per Kilogram definition: kilocalorie per kilogram.
Worked examples
- A reading of 144 BTU/lb converts to 80 kcal/kg.
144 BTU/lb × 0.5555555556 = 80 kcal/kg - A value of 1000 BTU/lb is 555.5555556 kcal/kg.
1000 BTU/lb × 0.5555555556 = 555.5555556 kcal/kg
BTU per Pound to Kilocalorie per Kilogram conversion table
| BTU per Pound (BTU/lb) | Kilocalories per Kilogram (kcal/kg) |
|---|---|
| 1 BTU/lb | 0.5555555556 kcal/kg |
| 10 BTU/lb | 5.555555556 kcal/kg |
| 100 BTU/lb | 55.55555556 kcal/kg |
| 144 BTU/lb | 80 kcal/kg |
| 500 BTU/lb | 277.7777778 kcal/kg |
| 970 BTU/lb | 538.8888889 kcal/kg |
| 1000 BTU/lb | 555.5555556 kcal/kg |
| 1150 BTU/lb | 638.8888889 kcal/kg |
| 13000 BTU/lb | 7222.222222 kcal/kg |
| 19000 BTU/lb | 10555.55556 kcal/kg |
Where it's used
BTU per Pound are used for US steam tables, while kilocalories per kilogram appear in indian coal grading (GCV in kcal/kg). Both measure specific energy: enthalpy, latent heat and heating value per mass, so the conversion is a fixed factor.
BTU per Pound to other specific energy units
| Conversion | 1 BTU/lb equals |
|---|---|
| BTU per pound to kilocalorie per kilogram | 0.5555555556 kcal/kg |
| BTU per pound to kilojoule per kilogram | 2.326 kJ/kg |
| BTU per pound to megajoule per kilogram | 0.002326 MJ/kg |
| BTU per pound to joule per kilogram | 2326 J/kg |
| BTU per pound to calorie per gram | 0.5555555556 cal/g |
| BTU per pound to kilowatt-hour per kilogram | 0.0006461111111 kWh/kg |
| BTU per pound to joule per gram | 2.326 J/g |
Frequently asked questions
How many kilocalories per kilogram are in 1 BTU per pound?
1 BTU/lb = 0.5555555556 kcal/kg.
How do I convert BTU per pound to kilocalories per kilogram?
Multiply the value in BTU/lb by 0.5555555556, or divide it by 1.8. For example, 15 BTU/lb × 0.5555555556 = 8.333333333 kcal/kg.
Is the BTU/lb 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
- 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, "British thermal unit_IT per pound".
- 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 BTU per Pound to Kilocalories per Kilogram. Retrieved October 29, 2026, from https://scientificconverters.com/specific-energy/btu-per-pound-to-kilocalories-per-kilogram/
IEEE
Scientific Converters, "Convert BTU per Pound to Kilocalories per Kilogram," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/specific-energy/btu-per-pound-to-kilocalories-per-kilogram/