Convert Joules per Gram Kelvin to cal/(g·°C)
1 joule per gram kelvin (J/(g·K)) = 0.2388458966 calories per gram degree Celsius (cal/(g·°C)). 1 cal/(g·°C) = 4.1868 J/(g·K). Example: 4.18 J/(g·K) = 4.18 × 0.2388458966 = 0.9983758479 cal/(g·°C).
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1 J/(g·K) = 0.2388458966 cal/(g·°C)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk joule per gram kelvin to calorie per gram degree Celsius converter to paste a column from Excel.
How to Convert Joule per Gram Kelvin to Calorie per Gram Degree Celsius
- 1 J/(g·K) = 0.2388458966 cal/(g·°C)
- 1 cal/(g·°C) = 4.1868 J/(g·K)
- Example: convert 4.18 J/(g·K) to cal/(g·°C): 4.18 J/(g·K) = 4.18 × 0.2388458966 cal/(g·°C) = 0.9983758479 cal/(g·°C)
Reference conditions. cal/(g·°C): International Table calorie (4.1868 J).
Formula
cal/(g·°C) = J/(g·K) × 0.2388458966275
or cal/(g·°C) = J/(g·K) ÷ 4.1868
Derivation from SI units:
- 1 J/(g·K) = 1000 J/(kg·K) = 1 kJ/(kg·K).
- 1 cal_IT/(g·°C) = 4.1868 J/(g·K) = 4186.8 J/(kg·K).
- 1 J/(g·K) = 1000 J/(kg·K) ÷ 4186.8 J/(kg·K) per cal/(g·°C) = 0.2388458966275 cal/(g·°C)
Both units are defined exactly, so the factor is exact. Joule per Gram Kelvin definition: joule per gram kelvin; Calorie per Gram Degree Celsius definition: calorie per gram degree Celsius.
Worked examples
- Water at 4.18 J/(g·K) is 0.9983758479 cal/(g·°C).
4.18 J/(g·K) × 0.2388458966 = 0.9983758479 cal/(g·°C) - Copper at 0.385 J/(g·K) is 0.0919556702 cal/(g·°C).
0.385 J/(g·K) × 0.2388458966 = 0.0919556702 cal/(g·°C)
Joule per Gram Kelvin to Calorie per Gram Degree Celsius conversion table
| Joules per Gram Kelvin (J/(g·K)) | Calories per Gram Degree Celsius (cal/(g·°C)) |
|---|---|
| 0.13 J/(g·K) | 0.03104996656 cal/(g·°C) |
| 0.24 J/(g·K) | 0.05732301519 cal/(g·°C) |
| 0.385 J/(g·K) | 0.0919556702 cal/(g·°C) |
| 0.45 J/(g·K) | 0.1074806535 cal/(g·°C) |
| 0.9 J/(g·K) | 0.214961307 cal/(g·°C) |
| 1 J/(g·K) | 0.2388458966 cal/(g·°C) |
| 1.7 J/(g·K) | 0.4060380243 cal/(g·°C) |
| 2 J/(g·K) | 0.4776917933 cal/(g·°C) |
| 2.4 J/(g·K) | 0.5732301519 cal/(g·°C) |
| 4.18 J/(g·K) | 0.9983758479 cal/(g·°C) |
Where it's used
Calorimetry results in J/(g·°C) are converted to cal/(g·°C). Divide by 4.1868.
Joule per Gram Kelvin to other specific heat capacity units
| Conversion | 1 J/(g·K) equals |
|---|---|
| joule per gram kelvin to calorie per gram degree Celsius | 0.2388458966 cal/(g·°C) |
| joule per gram kelvin to joule per kilogram kelvin | 1000 J/(kg·K) |
| joule per gram kelvin to kilojoule per kilogram kelvin | 1 kJ/(kg·K) |
| joule per gram kelvin to BTU per pound degree Fahrenheit | 0.2388458966 BTU/(lb·°F) |
| joule per gram kelvin to kilocalorie per kilogram degree Celsius | 0.2388458966 kcal/(kg·°C) |
Frequently asked questions
What is 4.18 J/(g·°C) in cal/(g·°C)?
0.9983758479 cal/(g·°C), essentially 1.
How many calories per gram degree Celsius are in 1 joule per gram kelvin?
1 J/(g·K) = 0.2388458966 cal/(g·°C).
How do I convert joules per gram kelvin to calories per gram degree Celsius?
Multiply the value in J/(g·K) by 0.2388458966, or divide it by 4.1868. For example, 4.18 J/(g·K) × 0.2388458966 = 0.9983758479 cal/(g·°C).
Is the J/(g·K) to cal/(g·°C) 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
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units with special names).
- 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 degree Celsius".
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 Joules per Gram Kelvin to cal/(g·°C). Retrieved October 29, 2026, from https://scientificconverters.com/specific-heat/joules-per-gram-kelvin-to-calories-per-gram-celsius/
IEEE
Scientific Converters, "Convert Joules per Gram Kelvin to cal/(g·°C)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/specific-heat/joules-per-gram-kelvin-to-calories-per-gram-celsius/