Convert International table BTU per hour per square inch per degree Fahrenheit to Kilowatt per square metre kelvin
Convert International table BTU per hour per square inch per degree Fahrenheit (BTU(IT)/(h·in²·°F)) to Kilowatt per square metre kelvin (kW/(m²·K)) instantly and accurately.
Conversion Formula
kW/(m²·K) = BTU(IT)/(h·in²·°F) × 0.8176699211
About International table BTU per hour per square inch per degree Fahrenheit
The international table BTU per hour per square inch per degree Fahrenheit (BTU(IT)/(h·in²·°F)) equals ≈ 817.67 W/(m²·K) (1 in² = 6.4516×10⁻⁴ m²; 1 °F = 5/9 K). Encountered in US electronics thermal management, semiconductor package datasheets, and heat sink characterisation where contact areas are measured in square inches. 1 BTU(IT)/(h·in²·°F) ≈ 817.67 W/(m²·K).
About Kilowatt per square metre kelvin
The kilowatt per square metre kelvin (kW/(m²·K)) equals exactly 1000 W/(m²·K). Characteristic of high-performance industrial applications: nucleate pool boiling of water reaches 5-50 kW/(m²·K), compact plate heat exchangers with liquid-liquid flow achieve 3-8 kW/(m²·K), and jet impingement cooling on metal surfaces can exceed 10 kW/(m²·K). 1 kW/(m²·K) = 10³ W/(m²·K).
Quick Reference Table
| International table BTU per hour per square inch per degree Fahrenheit (BTU(IT)/(h·in²·°F)) | Kilowatt per square metre kelvin (kW/(m²·K)) |
|---|---|
| 1 BTU(IT)/(h·in²·°F) | 0.81767 kW/(m²·K) |
| 2 BTU(IT)/(h·in²·°F) | 1.63534 kW/(m²·K) |
| 5 BTU(IT)/(h·in²·°F) | 4.08835 kW/(m²·K) |
| 10 BTU(IT)/(h·in²·°F) | 8.1767 kW/(m²·K) |
| 25 BTU(IT)/(h·in²·°F) | 20.4417 kW/(m²·K) |
| 50 BTU(IT)/(h·in²·°F) | 40.8835 kW/(m²·K) |
| 100 BTU(IT)/(h·in²·°F) | 81.767 kW/(m²·K) |