Convert Millikelvin per watt to Degree Fahrenheit per watt
Convert Millikelvin per watt (mK/W) to Degree Fahrenheit per watt (°F/W) instantly and accurately.
Conversion Formula
°F/W = mK/W × 0.0018
About Millikelvin per watt
The millikelvin per watt (mK/W) equals exactly 10⁻³ K/W. It is used for ultra-low thermal resistances in high-conductivity materials such as diamond heat spreaders (≈ 0.3 mK/W per mm thickness for 1 cm² area), liquid metal TIMs, and cryogenic heat links. Measuring at this scale requires precision power dissipation and calorimetric temperature sensing. 1 mK/W = 10⁻³ K/W.
About Degree Fahrenheit per watt
The degree Fahrenheit per watt (°F/W) equals exactly 5/9 K/W ≈ 0.5556 K/W. It appears in US power electronics datasheets and legacy JEDEC thermal specifications where junction-to-case resistance is reported in °F/W rather than °C/W or K/W. A device rated 5 °F/W has R = 5 × 5/9 ≈ 2.78 K/W. 1 °F/W = 5/9 K/W.
Quick Reference Table
| Millikelvin per watt (mK/W) | Degree Fahrenheit per watt (°F/W) |
|---|---|
| 1 mK/W | 0.0018 °F/W |
| 2 mK/W | 0.0036 °F/W |
| 5 mK/W | 0.009 °F/W |
| 10 mK/W | 0.018 °F/W |
| 25 mK/W | 0.045 °F/W |
| 50 mK/W | 0.09 °F/W |
| 100 mK/W | 0.18 °F/W |