Convert Hour-degree Fahrenheit per BTU to Microkelvin per watt
Convert Hour-degree Fahrenheit per BTU (h·°F/BTU) to Microkelvin per watt (μK/W) instantly and accurately.
Conversion Formula
μK/W = h·°F/BTU × 1895634.241
About Hour-degree Fahrenheit per BTU
The h·°F/BTU equals (5/9 × 3600)/1055.05585262 K/W ≈ 1.8956 K/W. It is the traditional US unit for thermal resistance in HVAC, building science, and insulation engineering. A pipe fitting with R = 1 h·°F/BTU passes 1 BTU/h per °F driving difference. Appears in ASHRAE handbooks, ASTM C177, and older US plumbing codes. 1 h·°F/BTU ≈ 1.8956 K/W.
About Microkelvin per watt
The microkelvin per watt (μK/W) equals exactly 10⁻⁶ K/W. Used in ultra-precision cryogenic and nanotechnology research to characterise thermal contact resistance of atomically bonded interfaces, van der Waals heterostructures, and superconducting qubit heat links at millikelvin temperatures. Also quoted for on-chip thermal connections in quantum processor prototypes. 1 μK/W = 10⁻⁶ K/W.
Quick Reference Table
| Hour-degree Fahrenheit per BTU (h·°F/BTU) | Microkelvin per watt (μK/W) |
|---|---|
| 1 h·°F/BTU | 1895630 μK/W |
| 2 h·°F/BTU | 3791270 μK/W |
| 5 h·°F/BTU | 9478170 μK/W |
| 10 h·°F/BTU | 18956300 μK/W |
| 25 h·°F/BTU | 47390900 μK/W |
| 50 h·°F/BTU | 94781700 μK/W |
| 100 h·°F/BTU | 189563000 μK/W |