Convert Microwatt per metre kelvin to BTU per second per foot per degree Fahrenheit
Convert Microwatt per metre kelvin (µW/(m·K)) to BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) instantly and accurately.
Conversion Formula
BTU/(s·ft·°F) = µW/(m·K) × 1.604970324e-10
About Microwatt per metre kelvin
The microwatt per metre kelvin (µW/(m·K)) equals exactly 10⁻⁶ W/(m·K). Used for near-vacuum conditions and evacuated superinsulation systems where the effective thermal conductivity falls well below the mW/(m·K) range. Evacuated multi-layer insulation (MLI) at high vacuum can reach 0.001-10 µW/(m·K) effective conductivity. Completes the SI prefix chain below mW/(m·K). 1 µW/(m·K) = 10⁻⁶ W/(m·K) = 10⁻³ mW/(m·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
| Microwatt per metre kelvin (µW/(m·K)) | BTU per second per foot per degree Fahrenheit (BTU/(s·ft·°F)) |
|---|---|
| 1 µW/(m·K) | 1.605 × 10-10 BTU/(s·ft·°F) |
| 2 µW/(m·K) | 3.21 × 10-10 BTU/(s·ft·°F) |
| 5 µW/(m·K) | 8.025 × 10-10 BTU/(s·ft·°F) |
| 10 µW/(m·K) | 1.605 × 10-9 BTU/(s·ft·°F) |
| 25 µW/(m·K) | 4.012 × 10-9 BTU/(s·ft·°F) |
| 50 µW/(m·K) | 8.025 × 10-9 BTU/(s·ft·°F) |
| 100 µW/(m·K) | 1.605 × 10-8 BTU/(s·ft·°F) |