Convert International table calorie per centimetre per second per degree Celsius to BTU per second per foot per degree Fahrenheit
Convert International table calorie per centimetre per second per degree Celsius (cal(IT)/(cm·s·°C)) to BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) instantly and accurately.
Conversion Formula
BTU/(s·ft·°F) = cal(IT)/(cm·s·°C) × 0.06719689751
About International table calorie per centimetre per second per degree Celsius
The cal(IT)/(cm·s·°C) equals exactly 4.1868/0.01 = 418.68 W/(m·K) (1 international table calorie = 4.1868 J). Used in pre-SI thermodynamics, steam tables, and international heat transfer references. Copper: ≈0.920 cal(IT)/(cm·s·°C). Slightly larger than cal(th)/(cm·s·°C). 1 cal(IT)/(cm·s·°C) = 418.68 W/(m·K).
About BTU per second per foot per degree Fahrenheit
The BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) equals (1055.05585262 × 9)/(0.3048 × 5) W/(m·K) ≈6230.6 W/(m·K). Equal to 3600 × BTU/(h·ft·°F). Reserved for extremely high-power transient applications in US engineering literature; copper ≈0.0617; carbon steel ≈0.0072 BTU/(s·ft·°F). 1 BTU/(s·ft·°F) = 3600 BTU/(h·ft·°F) ≈6230.6 W/(m·K).
Quick Reference Table
| International table calorie per centimetre per second per degree Celsius (cal(IT)/(cm·s·°C)) | BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) |
|---|---|
| 1 cal(IT)/(cm·s·°C) | 0.0671969 BTU/(s·ft·°F) |
| 2 cal(IT)/(cm·s·°C) | 0.134394 BTU/(s·ft·°F) |
| 5 cal(IT)/(cm·s·°C) | 0.335984 BTU/(s·ft·°F) |
| 10 cal(IT)/(cm·s·°C) | 0.671969 BTU/(s·ft·°F) |
| 25 cal(IT)/(cm·s·°C) | 1.67992 BTU/(s·ft·°F) |
| 50 cal(IT)/(cm·s·°C) | 3.35984 BTU/(s·ft·°F) |
| 100 cal(IT)/(cm·s·°C) | 6.71969 BTU/(s·ft·°F) |