Convert BTU per second per foot per degree Fahrenheit to Kilowatt per metre kelvin
Convert BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) to Kilowatt per metre kelvin (kW/(m·K)) instantly and accurately.
Conversion Formula
kW/(m·K) = BTU/(s·ft·°F) × 6.230644799
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).
About Kilowatt per metre kelvin
The kilowatt per metre kelvin (kW/(m·K)) equals exactly 1000 W/(m·K). Used for exceptionally conductive materials: type IIa diamond ≈2.2 kW/(m·K), isotopically pure ²⁸Si ≈1.0 kW/(m·K), single-crystal graphene > 5 kW/(m·K) at room temperature. Convenient for comparing advanced thermal management and heat spreader materials. 1 kW/(m·K) = 1000 W/(m·K).
Quick Reference Table
| BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) | Kilowatt per metre kelvin (kW/(m·K)) |
|---|---|
| 1 BTU/(s·ft·°F) | 6.23064 kW/(m·K) |
| 2 BTU/(s·ft·°F) | 12.4613 kW/(m·K) |
| 5 BTU/(s·ft·°F) | 31.1532 kW/(m·K) |
| 10 BTU/(s·ft·°F) | 62.3064 kW/(m·K) |
| 25 BTU/(s·ft·°F) | 155.766 kW/(m·K) |
| 50 BTU/(s·ft·°F) | 311.532 kW/(m·K) |
| 100 BTU/(s·ft·°F) | 623.064 kW/(m·K) |