Convert Degree Fahrenheit per watt to Kilokelvin per watt
Convert Degree Fahrenheit per watt (°F/W) to Kilokelvin per watt (kK/W) instantly and accurately.
Conversion Formula
kK/W = °F/W × 0.0005555555556
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.
About Kilokelvin per watt
The kilokelvin per watt (kK/W) equals exactly 1000 K/W. Used for high thermal resistances in aerogel films, vacuum insulation panels with small contact area, and micron-scale thin-film insulation layers in microelectronics packaging. Numerically identical to °C/mW; both notations denote the same thermal resistance in different engineering contexts. 1 kK/W = 1000 K/W = 1 °C/mW.
Quick Reference Table
| Degree Fahrenheit per watt (°F/W) | Kilokelvin per watt (kK/W) |
|---|---|
| 1 °F/W | 0.000555556 kK/W |
| 2 °F/W | 0.00111111 kK/W |
| 5 °F/W | 0.00277778 kK/W |
| 10 °F/W | 0.00555556 kK/W |
| 25 °F/W | 0.0138889 kK/W |
| 50 °F/W | 0.0277778 kK/W |
| 100 °F/W | 0.0555556 kK/W |