Conversion Factors for Units of Calorific Value



Metric Units British Unit

Joule per gram
(J/g)
Kilocalorie per kilogram
(kcal/kg)
British thermal unit per pound
(BTh U/lb)

1 Joule per gram
(J/g)
1 0.238 846 0.429 923
 
1 Kilocalorie per kilogram
(kcal/kg)
4.1868 1 1.8
 
1 British thermal unit per pound
(BTh U/lb)
2.326 0.555 56 1