Convert Milliwatt per square metre kelvin to International table BTU per hour per square inch per degree Fahrenheit
Convert Milliwatt per square metre kelvin (mW/(m²·K)) to International table BTU per hour per square inch per degree Fahrenheit (BTU(IT)/(h·in²·°F)) instantly and accurately.
Conversion Formula
BTU(IT)/(h·in²·°F) = mW/(m²·K) × 1.222987387e-6
About Milliwatt per square metre kelvin
The milliwatt per square metre kelvin (mW/(m²·K)) equals 10⁻³ W/(m²·K). Used in thermal characterization of advanced superinsulation panels and cryogenic multilayer insulation (MLI) in space applications, where effective heat transfer coefficients as low as 0.5-5 mW/(m²·K) are achieved in high-vacuum multilayer systems. 1 mW/(m²·K) = 10⁻³ W/(m²·K).
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).
Quick Reference Table
| Milliwatt per square metre kelvin (mW/(m²·K)) | International table BTU per hour per square inch per degree Fahrenheit (BTU(IT)/(h·in²·°F)) |
|---|---|
| 1 mW/(m²·K) | 1.223 × 10-6 BTU(IT)/(h·in²·°F) |
| 2 mW/(m²·K) | 2.446 × 10-6 BTU(IT)/(h·in²·°F) |
| 5 mW/(m²·K) | 6.115 × 10-6 BTU(IT)/(h·in²·°F) |
| 10 mW/(m²·K) | 1.223 × 10-5 BTU(IT)/(h·in²·°F) |
| 25 mW/(m²·K) | 3.057 × 10-5 BTU(IT)/(h·in²·°F) |
| 50 mW/(m²·K) | 6.115 × 10-5 BTU(IT)/(h·in²·°F) |
| 100 mW/(m²·K) | 0.000122299 BTU(IT)/(h·in²·°F) |