Specific heat capacity converters

5 converters. J/(kg·K), kJ/(kg·K), cal/(g·°C) and BTU/(lb·°F); the same units work for specific entropy, each with the formula and the math worked out with your numbers.

Specific heat

Kilojoules per kilogram-kelvin to BTU per pound-degree Fahrenheit kJ/(kg·K) → BTU/(lb·°F) 4.18 kJ/(kg·K) = 1 BTU/(lb·°F) BTU per pound-degree Fahrenheit to kilojoules per kilogram-kelvin BTU/(lb·°F) → kJ/(kg·K) 0.24 BTU/(lb·°F) = 1 kJ/(kg·K) Calories per gram-degree Celsius to joules per kilogram-kelvin cal/(g·°C) → J/(kg·K) 0.385 cal/(g·°C) = 1,610.84 J/(kg·K) Joules per kilogram-kelvin to calories per gram-degree Celsius J/(kg·K) → cal/(g·°C) 900 J/(kg·K) = 0.22 cal/(g·°C) Kilojoules per kilogram-kelvin to calories per gram-degree Celsius kJ/(kg·K) → cal/(g·°C) 2.1 kJ/(kg·K) = 0.5 cal/(g·°C)

Specific heat capacity units at a glance

Unit	Symbol	In joules per kilogram-kelvin	Defined as
Joule per kilogram-kelvin	J/(kg·K)	1	SI
Kilojoule per kilogram-kelvin	kJ/(kg·K)	1,000	1,000 J/(kg·K)
Calorie per gram-degree Celsius	cal/(g·°C)	4,184	4.184 kJ/(kg·K)
BTU per pound-degree Fahrenheit	BTU/(lb·°F)	4,186.8	4.1868 kJ/(kg·K)

Water’s specific heat is about 4.18 kJ/(kg·K), which is 1 cal/(g·°C) and almost exactly 1 BTU/(lb·°F).