Convert Watt per centimetre kelvin to BTU per hour per foot per degree Fahrenheit
Convert Watt per centimetre kelvin (W/(cm·K)) to BTU per hour per foot per degree Fahrenheit (BTU/(h·ft·°F)) instantly and accurately.
Conversion Formula
BTU/(h·ft·°F) = W/(cm·K) × 57.77893165
About Watt per centimetre kelvin
The watt per centimetre kelvin (W/(cm·K)) equals exactly 100 W/(m·K). Used for highly conductive materials in electronics and cryogenics: silver ≈4.29, copper ≈3.85, aluminium ≈2.05 W/(cm·K); synthetic diamond ≈22 W/(cm·K). Common in semiconductor and power device literature where component dimensions are centimetre-scale. 1 W/(cm·K) = 100 W/(m·K).
About BTU per hour per foot per degree Fahrenheit
The BTU/(h·ft·°F) equals (1055.05585262 × 9)/(3600 × 0.3048 × 5) W/(m·K) ≈1.7307 W/(m·K). Standard US thermal conductivity unit in ASHRAE Handbook and ASTM C1045. Copper: ≈223; carbon steel: ≈26; brick: ≈0.44; glass fibre insulation: ≈0.025 BTU/(h·ft·°F). 1 BTU/(h·ft·°F) = 12 BTU·in/(h·ft²·°F) ≈1.7307 W/(m·K).
Quick Reference Table
| Watt per centimetre kelvin (W/(cm·K)) | BTU per hour per foot per degree Fahrenheit (BTU/(h·ft·°F)) |
|---|---|
| 1 W/(cm·K) | 57.7789 BTU/(h·ft·°F) |
| 2 W/(cm·K) | 115.558 BTU/(h·ft·°F) |
| 5 W/(cm·K) | 288.895 BTU/(h·ft·°F) |
| 10 W/(cm·K) | 577.789 BTU/(h·ft·°F) |
| 25 W/(cm·K) | 1444.47 BTU/(h·ft·°F) |
| 50 W/(cm·K) | 2888.95 BTU/(h·ft·°F) |
| 100 W/(cm·K) | 5777.89 BTU/(h·ft·°F) |