Convert cal/(s·cm·°C) to BTU/(h·ft·°F)
1 calorie per second centimetre degree Celsius (cal/(s·cm·°C)) = 241.74705 BTU per hour foot degree Fahrenheit (BTU/(h·ft·°F)). 1 BTU/(h·ft·°F) = 0.00413655513 cal/(s·cm·°C). Example: 15 cal/(s·cm·°C) = 15 × 241.74705 = 3626.205751 BTU/(h·ft·°F).
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1 cal/(s·cm·°C) = 241.74705 BTU/(h·ft·°F)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk calorie per second centimetre degree Celsius to BTU per hour foot degree Fahrenheit converter to paste a column from Excel.
How to Convert cal/(s·cm·°C) to BTU/(h·ft·°F)
- 1 cal/(s·cm·°C) = 241.74705 BTU/(h·ft·°F)
- 1 BTU/(h·ft·°F) = 0.00413655513 cal/(s·cm·°C)
- Example: convert 15 cal/(s·cm·°C) to BTU/(h·ft·°F): 15 cal/(s·cm·°C) = 15 × 241.74705 BTU/(h·ft·°F) = 3626.205751 BTU/(h·ft·°F)
Reference conditions. cal/(s·cm·°C): Thermochemical calorie (4.184 J)
Formula
BTU/(h·ft·°F) = cal/(s·cm·°C) × 241.7470500416
Derivation from SI units:
- 1 cal_th/(s·cm·°C) = 4.184 J ÷ (1 s × 0.01 m × 1 K) = 418.4 W/(m·K) (exact)
- 1 BTU_IT/(h·ft·°F) = 1055.05585262 J ÷ (3600 s × 0.3048 m × 5/9 K) = 1.730734666 W/(m·K) (exact)
- 1 cal/(s·cm·°C) = 418.4 W/(m·K) ÷ 1.730734666371 W/(m·K) per BTU/(h·ft·°F) = 241.7470500416 BTU/(h·ft·°F)
Both units are defined exactly, so the factor is exact. cal/(s·cm·°C) definition: calorie per second centimetre degree Celsius; BTU/(h·ft·°F) definition: BTU per hour foot degree Fahrenheit.
Worked examples
- A reading of 0.005 cal/(s·cm·°C) converts to 1.20873525 BTU/(h·ft·°F).
0.005 cal/(s·cm·°C) × 241.74705 = 1.20873525 BTU/(h·ft·°F) - A value of 0.1 cal/(s·cm·°C) is 24.174705 BTU/(h·ft·°F).
0.1 cal/(s·cm·°C) × 241.74705 = 24.174705 BTU/(h·ft·°F)
cal/(s·cm·°C) to BTU/(h·ft·°F) conversion table
| cal/(s·cm·°C) | BTU/(h·ft·°F) |
|---|---|
| 0.0001 cal/(s·cm·°C) | 0.024174705 BTU/(h·ft·°F) |
| 0.0005 cal/(s·cm·°C) | 0.120873525 BTU/(h·ft·°F) |
| 0.001 cal/(s·cm·°C) | 0.24174705 BTU/(h·ft·°F) |
| 0.005 cal/(s·cm·°C) | 1.20873525 BTU/(h·ft·°F) |
| 0.01 cal/(s·cm·°C) | 2.4174705 BTU/(h·ft·°F) |
| 0.05 cal/(s·cm·°C) | 12.0873525 BTU/(h·ft·°F) |
| 0.1 cal/(s·cm·°C) | 24.174705 BTU/(h·ft·°F) |
| 0.5 cal/(s·cm·°C) | 120.873525 BTU/(h·ft·°F) |
| 0.9 cal/(s·cm·°C) | 217.572345 BTU/(h·ft·°F) |
| 1 cal/(s·cm·°C) | 241.74705 BTU/(h·ft·°F) |
Where it's used
cal/(s·cm·°C) are used for older scientific literature, while BTU per hour foot degree Fahrenheit appear in US heat transfer textbooks and ASHRAE data. Both measure thermal conductivity (k, λ), so the conversion is a fixed factor.
cal/(s·cm·°C) to other thermal conductivity units
| Conversion | 1 cal/(s·cm·°C) equals |
|---|---|
| calorie per second centimetre degree Celsius to BTU per hour foot degree Fahrenheit | 241.74705 BTU/(h·ft·°F) |
| calorie per second centimetre degree Celsius to watt per metre kelvin | 418.4 W/(m·K) |
| calorie per second centimetre degree Celsius to BTU inch per hour square foot degree Fahrenheit | 2900.9646 BTU·in/(h·ft²·°F) |
| calorie per second centimetre degree Celsius to milliwatt per metre kelvin | 418400 mW/(m·K) |
| calorie per second centimetre degree Celsius to kilocalorie per hour metre degree Celsius | 359.7592433 kcal/(h·m·°C) |
| calorie per second centimetre degree Celsius to watt per centimetre kelvin | 4.184 W/(cm·K) |
Frequently asked questions
How many BTU per hour foot degree Fahrenheit are in 1 calorie per second centimetre degree Celsius?
1 cal/(s·cm·°C) = 241.74705 BTU/(h·ft·°F).
How do I convert calories per second centimetre degree Celsius to BTU per hour foot degree Fahrenheit?
Multiply the value in cal/(s·cm·°C) by 241.74705. For example, 15 cal/(s·cm·°C) × 241.74705 = 3626.205751 BTU/(h·ft·°F).
Is the cal/(s·cm·°C) to BTU/(h·ft·°F) 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
- 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_th per centimeter second degree Celsius [cal_th/(cm · s · °C)]".
- 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, "British thermal unit_IT per hour foot degree Fahrenheit [Btu_IT/(h · ft · °F)]".
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 cal/(s·cm·°C) to BTU/(h·ft·°F). Retrieved October 25, 2026, from https://scientificconverters.com/thermal-conductivity/calories-per-second-centimeter-celsius-to-btu-per-hour-foot-fahrenheit/
IEEE
Scientific Converters, "Convert cal/(s·cm·°C) to BTU/(h·ft·°F)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/thermal-conductivity/calories-per-second-centimeter-celsius-to-btu-per-hour-foot-fahrenheit/