Convert BTU inch per hour per square foot per degree Fahrenheit to Megawatt per metre kelvin
Convert BTU inch per hour per square foot per degree Fahrenheit (BTU·in/(h·ft²·°F)) to Megawatt per metre kelvin (MW/(m·K)) instantly and accurately.
Conversion Formula
MW/(m·K) = BTU·in/(h·ft²·°F) × 1.442278889e-7
About BTU inch per hour per square foot per degree Fahrenheit
The BTU·in/(h·ft²·°F) equals (1055.05585262 × 0.0254 × 9)/(3600 × 0.09290304 × 5) W/(m·K) ≈0.1442 W/(m·K). The standard US k-factor unit for insulation per ASTM C177, C335, and C518. Mineral wool ≈0.25; expanded polystyrene ≈0.24; polyurethane foam ≈0.14 BTU·in/(h·ft²·°F). 1 BTU·in/(h·ft²·°F) ≈0.1442 W/(m·K).
About Megawatt per metre kelvin
The megawatt per metre kelvin (MW/(m·K)) equals exactly 10⁶ W/(m·K). A theoretical and research unit for modelling exotic or nanostructured materials: theoretical carbon nanotube axial conductivity predictions and astrophysical plasma heat transport can reach the MW/(m·K) range. No bulk engineering material approaches this value. 1 MW/(m·K) = 10⁶ W/(m·K) = 1000 kW/(m·K).
Quick Reference Table
| BTU inch per hour per square foot per degree Fahrenheit (BTU·in/(h·ft²·°F)) | Megawatt per metre kelvin (MW/(m·K)) |
|---|---|
| 1 BTU·in/(h·ft²·°F) | 1.442 × 10-7 MW/(m·K) |
| 2 BTU·in/(h·ft²·°F) | 2.885 × 10-7 MW/(m·K) |
| 5 BTU·in/(h·ft²·°F) | 7.211 × 10-7 MW/(m·K) |
| 10 BTU·in/(h·ft²·°F) | 1.442 × 10-6 MW/(m·K) |
| 25 BTU·in/(h·ft²·°F) | 3.606 × 10-6 MW/(m·K) |
| 50 BTU·in/(h·ft²·°F) | 7.211 × 10-6 MW/(m·K) |
| 100 BTU·in/(h·ft²·°F) | 1.442 × 10-5 MW/(m·K) |