Convert Milliwatt per square metre kelvin to International table BTU per second per square foot per degree Fahrenheit
Convert Milliwatt per square metre kelvin (mW/(m²·K)) to International table BTU per second per square foot per degree Fahrenheit (BTU(IT)/(s·ft²·°F)) instantly and accurately.
Conversion Formula
BTU(IT)/(s·ft²·°F) = mW/(m²·K) × 4.891949547e-8
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 second per square foot per degree Fahrenheit
The international table BTU per second per square foot per degree Fahrenheit (BTU(IT)/(s·ft²·°F)) equals ≈ 20442 W/(m²·K) (= 3600 × BTU(IT)/(h·ft²·°F)). Encountered in atmospheric re-entry aerodynamic heating analysis, solid rocket motor nozzle throat design, and nuclear reactor thermal-hydraulics with peak surface heat transfer rates. 1 BTU(IT)/(s·ft²·°F) ≈ 20442 W/(m²·K).
Quick Reference Table
| Milliwatt per square metre kelvin (mW/(m²·K)) | International table BTU per second per square foot per degree Fahrenheit (BTU(IT)/(s·ft²·°F)) |
|---|---|
| 1 mW/(m²·K) | 4.892 × 10-8 BTU(IT)/(s·ft²·°F) |
| 2 mW/(m²·K) | 9.784 × 10-8 BTU(IT)/(s·ft²·°F) |
| 5 mW/(m²·K) | 2.446 × 10-7 BTU(IT)/(s·ft²·°F) |
| 10 mW/(m²·K) | 4.892 × 10-7 BTU(IT)/(s·ft²·°F) |
| 25 mW/(m²·K) | 1.223 × 10-6 BTU(IT)/(s·ft²·°F) |
| 50 mW/(m²·K) | 2.446 × 10-6 BTU(IT)/(s·ft²·°F) |
| 100 mW/(m²·K) | 4.892 × 10-6 BTU(IT)/(s·ft²·°F) |