Convert Milliwatt per metre kelvin to BTU per second per foot per degree Fahrenheit
Convert Milliwatt per metre kelvin (mW/(m·K)) to BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) instantly and accurately.
Conversion Formula
BTU/(s·ft·°F) = mW/(m·K) × 1.604970324e-7
About Milliwatt per metre kelvin
The milliwatt per metre kelvin (mW/(m·K)) equals exactly 10⁻³ W/(m·K). Used for gases and ultra-low thermal conductivity solids: still air ≈26 mW/(m·K), CO₂ ≈16 mW/(m·K), aerogels 12-20 mW/(m·K), vacuum insulation panels ≈5 mW/(m·K). Standard insulation products are typically specified in mW/(m·K). 1 mW/(m·K) = 10⁻³ W/(m·K) = 0.1 mW/(cm·K).
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).
Quick Reference Table
| Milliwatt per metre kelvin (mW/(m·K)) | BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) |
|---|---|
| 1 mW/(m·K) | 1.605 × 10-7 BTU/(s·ft·°F) |
| 2 mW/(m·K) | 3.21 × 10-7 BTU/(s·ft·°F) |
| 5 mW/(m·K) | 8.025 × 10-7 BTU/(s·ft·°F) |
| 10 mW/(m·K) | 1.605 × 10-6 BTU/(s·ft·°F) |
| 25 mW/(m·K) | 4.012 × 10-6 BTU/(s·ft·°F) |
| 50 mW/(m·K) | 8.025 × 10-6 BTU/(s·ft·°F) |
| 100 mW/(m·K) | 1.605 × 10-5 BTU/(s·ft·°F) |