Convert Kilojoules per Kilogram-Kelvin to Calories per Gram-Celsius
Instantly convert Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) to Calories per Gram-Celsius (cal/(g·°C)) with our free online calculator.
Formula: kJ/(kg·K) to cal/(g·°C) — multiply by 0.239006
Reference Table
| Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) | Calories per Gram-Celsius (cal/(g·°C)) |
|---|---|
| 1 | 0.239006 |
| 5 | 1.19503 |
| 10 | 2.39006 |
| 25 | 5.97514 |
| 50 | 11.9503 |
| 100 | 23.9006 |
How to Convert Kilojoules per Kilogram-Kelvin to Calories per Gram-Celsius
Formula
To convert Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) to Calories per Gram-Celsius (cal/(g·°C)): multiply by 0.239006
Step-by-Step
- Start with your value in Kilojoules per Kilogram-Kelvin (kJ/(kg·K)).
- Multiply by 0.239006 to perform the conversion.
- The result is your value expressed in Calories per Gram-Celsius (cal/(g·°C)).
Conversion Factor
1 kJ/(kg·K) = 0.239006 cal/(g·°C)
Reverse Factor
1 cal/(g·°C) = 4.184 kJ/(kg·K)
Worked Example
Convert 25 Kilojoules per Kilogram-Kelvin to Calories per Gram-Celsius: 25 kJ/(kg·K) = 5.97514 cal/(g·°C)
About Kilojoule per Kilogram-Kelvin (kJ/(kg·K))
A metric specific-entropy unit equal to exactly 1,000 J/(kg·K). kJ/(kg·K) is the dominant working unit in international engineering steam tables per IAPWS-IF97, refrigerant property tables (Lemmon-Span-Wagner Helmholtz EoS for R-134a, R-410A, R-1234yf, R-744 CO₂, ammonia R-717), and gas-turbine working-fluid property charts per VDI 4670. Standard saturated water entropy at 100°C: s_f = 1.3069 kJ/(kg·K); saturated steam at same point: s_g = 7.3549 kJ/(kg·K); the entropy of vaporization s_fg = 6.0480 kJ/(kg·K) — a direct measure of phase-change reversible heat per unit mass at that temperature (s_fg · T = h_fg at saturation). T-s diagrams (temperature-entropy thermodynamic cycle plots used for Rankine, Brayton, refrigeration, organic Rankine ORC cycles) universally use kJ/(kg·K) on the horizontal axis. Mollier h-s diagrams for steam likewise use kJ/(kg·K). The unit is dominant in Cycle-Tempo, EBSILON, GateCycle, Thermoflex, IPSEpro power-plant simulators.
About Calorie per Gram-Celsius (cal/(g·°C))
A CGS specific-entropy unit numerically identical to kcal/(kg·°C) and equal to 4,184 J/(kg·K) (using the thermochemical calorie). cal/(g·°C) appears in older chemistry literature for solution-calorimetry data (heats of dissolution, mixing, dilution), biological thermodynamics where the energy-scale is naturally small (protein unfolding ΔS ≈ 0.5 cal/(g·°C); ligand-receptor binding entropy in isothermal titration calorimetry; lipid-bilayer phase transitions), legacy food-science publications (specific heats of water = 1.000 cal/(g·°C) by historical definition), and pharmaceutical-formulation papers measuring excipient thermal properties via differential scanning calorimetry (DSC). The unit's persistence is due to the historical definition of the calorie as exactly the heat required to raise 1 g of water by 1 °C between 14.5°C and 15.5°C (giving water's specific heat the convenient value of 1.000 in this unit system). Mostly superseded by SI J/(kg·K) or kJ/(kg·K) in modern publications, but cal/(g·°C) still appears in NIST WebBook cross-references, in older Russian and German thermochemistry compilations (Landolt-Börnstein), and in TA Instruments and PerkinElmer DSC software output options.
Quick Facts
- 1 Kilojoule per Kilogram-Kelvin equals 0.239006 Calories per Gram-Celsius
- 1 Calorie per Gram-Celsius equals 4.184 Kilojoules per Kilogram-Kelvin
- Kilojoule per Kilogram-Kelvin is a unit of specific entropy
- Calorie per Gram-Celsius is a unit of specific entropy
- This conversion is commonly used in turbine design, refrigeration analysis, and power plant engineering
- The Kilojoule per Kilogram-Kelvin belongs to the metric system
Common Kilojoule per Kilogram-Kelvin to Calorie per Gram-Celsius Conversions
| Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) | Calories per Gram-Celsius (cal/(g·°C)) |
|---|---|
| 0.01 | 0.00239006 |
| 0.1 | 0.0239006 |
| 0.25 | 0.0597514 |
| 0.5 | 0.119503 |
| 1 | 0.239006 |
| 2 | 0.478011 |
| 3 | 0.717017 |
| 5 | 1.19503 |
| 10 | 2.39006 |
| 15 | 3.58509 |
| 20 | 4.78011 |
| 25 | 5.97514 |
| 50 | 11.9503 |
| 75 | 17.9254 |
| 100 | 23.9006 |
| 250 | 59.7514 |
| 500 | 119.503 |
| 1000 | 239.006 |
| 5000 | 1195.03 |
| 10000 | 2390.06 |
Understanding Kilojoules per Kilogram-Kelvin
The Kilojoule per Kilogram-Kelvin (symbol: kJ/(kg·K)) is a unit of specific entropy. A metric specific-entropy unit equal to exactly 1,000 J/(kg·K). kJ/(kg·K) is the dominant working unit in international engineering steam tables per IAPWS-IF97, refrigerant property tables (Lemmon-Span-Wagner Helmholtz EoS for R-134a, R-410A, R-1234yf, R-744 CO₂, ammonia R-717), and gas-turbine working-fluid property charts per VDI 4670. Standard saturated water entropy at 100°C: s_f = 1.3069 kJ/(kg·K); saturated steam at same point: s_g = 7.3549 kJ/(kg·K); the entropy of vaporization s_fg = 6.0480 kJ/(kg·K) — a direct measure of phase-change reversible heat per unit mass at that temperature (s_fg · T = h_fg at saturation). T-s diagrams (temperature-entropy thermodynamic cycle plots used for Rankine, Brayton, refrigeration, organic Rankine ORC cycles) universally use kJ/(kg·K) on the horizontal axis. Mollier h-s diagrams for steam likewise use kJ/(kg·K). The unit is dominant in Cycle-Tempo, EBSILON, GateCycle, Thermoflex, IPSEpro power-plant simulators.
It belongs to the metric measurement system.
Kilojoules per Kilogram-Kelvin are commonly used in turbine design, refrigeration analysis, and power plant engineering.
Understanding Calories per Gram-Celsius
The Calorie per Gram-Celsius (symbol: cal/(g·°C)) is a unit of specific entropy. A CGS specific-entropy unit numerically identical to kcal/(kg·°C) and equal to 4,184 J/(kg·K) (using the thermochemical calorie). cal/(g·°C) appears in older chemistry literature for solution-calorimetry data (heats of dissolution, mixing, dilution), biological thermodynamics where the energy-scale is naturally small (protein unfolding ΔS ≈ 0.5 cal/(g·°C); ligand-receptor binding entropy in isothermal titration calorimetry; lipid-bilayer phase transitions), legacy food-science publications (specific heats of water = 1.000 cal/(g·°C) by historical definition), and pharmaceutical-formulation papers measuring excipient thermal properties via differential scanning calorimetry (DSC). The unit's persistence is due to the historical definition of the calorie as exactly the heat required to raise 1 g of water by 1 °C between 14.5°C and 15.5°C (giving water's specific heat the convenient value of 1.000 in this unit system). Mostly superseded by SI J/(kg·K) or kJ/(kg·K) in modern publications, but cal/(g·°C) still appears in NIST WebBook cross-references, in older Russian and German thermochemistry compilations (Landolt-Börnstein), and in TA Instruments and PerkinElmer DSC software output options.
It belongs to the metric measurement system.
Calories per Gram-Celsius are commonly used in turbine design, refrigeration analysis, and power plant engineering.
Why Convert Kilojoules per Kilogram-Kelvin to Calories per Gram-Celsius?
Converting between Kilojoules per Kilogram-Kelvin and Calories per Gram-Celsius is a frequent requirement for engineers, scientists, and students working with specific entropy values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate specific entropy conversion is essential.
Frequently Asked Questions
How do I convert Kilojoules per Kilogram-Kelvin to Calories per Gram-Celsius?
A metric specific-entropy unit equal to exactly 1,000 J/(kg·K). To convert Kilojoules per Kilogram-Kelvin to Calories per Gram-Celsius, multiply by 0.239006. For example, 25 kJ/(kg·K) equals 5.97514 cal/(g·°C).
How many Calories per Gram-Celsius are in 1 Kilojoule per Kilogram-Kelvin?
There are 0.239006 Calories per Gram-Celsius in 1 Kilojoule per Kilogram-Kelvin.
How many Kilojoules per Kilogram-Kelvin are in 1 Calorie per Gram-Celsius?
There are 4.184 Kilojoules per Kilogram-Kelvin in 1 Calorie per Gram-Celsius.
What is the formula for Kilojoule per Kilogram-Kelvin to Calorie per Gram-Celsius conversion?
The formula is: multiply by 0.239006. This means 1 kJ/(kg·K) = 0.239006 cal/(g·°C).
Is a Kilojoule per Kilogram-Kelvin bigger than a Calorie per Gram-Celsius?
Yes. One Kilojoule per Kilogram-Kelvin is larger than one Calorie per Gram-Celsius because 1 kJ/(kg·K) equals 0.239006 cal/(g·°C), which is less than 1.
When do you need to convert between Kilojoules per Kilogram-Kelvin and Calories per Gram-Celsius?
A CGS specific-entropy unit numerically identical to kcal/(kg·°C) and equal to 4,184 J/(kg·K) (using the thermochemical calorie). Kilojoule per Kilogram-Kelvin and Calorie per Gram-Celsius are both specific entropy units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.