The specific heat capacity can be expressed in \\(\\text{kJ/(kg\\cdot K)}\\), which denotes the amount of energy in kilojoules required to raise the temperature of one kilogram of a material by one kelvin. The same property is often given in \\(\\text{cal/(g\\cdot °C)}\\), meaning calories per gram per degree Celsius. Because 1 kJ = 1000 J and 1 cal ≈ 4.184 J, the two units are directly convertible.
Practical Applications
Designing heating and cooling systems where material energy storage is critical.
Thermal analysis of chemicals, polymers, and metals in process engineering.
Energy balance calculations in HVAC, power plants, and food processing.
Kilojoule per kilogram-Kelvin to Calorie per gram-Celsius Conversion Reference Table
Kilojoule per kilogram-Kelvin (kJ/(kg·K))
Calorie per gram-Celsius (cal/(g·°C))
0.1
0.0239
0.5
0.1195
1.0
0.239
2.0
0.478
5.0
1.195
10.0
2.3901
20.0
4.7801
50.0
11.9503
100.0
23.9006
500.0
119.5029
1000.0
239.0057
Conversion Example
Convert \\(10\\ \text{kJ/(kg\\cdot K)}\\) to calories per gram‑Celsius.
It means that 1 kilojoule of energy is needed to raise the temperature of 1 kilogram of the substance by 1 kelvin (or 1 °C). In calorie terms this equals 0.239 cal/(g·°C).
The factor 0.239005736… comes from the precise relationship 1 cal = 4.184 J. Rounding to 0.239 would introduce a small error, which can be significant in high‑precision engineering calculations.
"On fait la science avec des faits, comme on fait une maison avec des pierres ; mais une accumulation de faits n'est pas plus une science qu'un tas de pierres n'est une maison." "Science is built up of facts, as a house is built of stones; but an accumulation of facts is no more a science than a heap of stones is a house." — Henri Poincaré (French Mathematician, Theoretical Physicist & Mining Engineer)