Convert Kelvin per horsepower to Degree Celsius per milliwatt
Convert Kelvin per horsepower (K/hp) to Degree Celsius per milliwatt (°C/mW) instantly and accurately.
Conversion Formula
°C/mW = K/hp × 1.341022090e-6
About Kelvin per horsepower
The kelvin per horsepower (K/hp) equals 1/745.69987158 K/W ≈ 1.341 × 10⁻³ K/W. Used in mechanical engineering when rating engine cooling systems, gearbox oil coolers, and hydraulic heat exchangers alongside power expressed in horsepower. A transmission cooler at 0.05 K/hp raises fluid temperature 3.73 K per 75 hp of friction losses. 1 K/hp ≈ 1.341 × 10⁻³ K/W.
About Degree Celsius per milliwatt
The degree Celsius per milliwatt (°C/mW) equals exactly 1000 K/W since 1 mW = 10⁻³ W and 1 °C = 1 K. Widely used in low-power semiconductor datasheets for characterising junction-to-ambient resistance: small-signal transistors, LEDs, photodiodes, and SMD resistors typically show RθJA of 50-500 °C/mW. A device at 200 °C/mW dissipating 5 mW rises 1 °C. 1 °C/mW = 1000 K/W = 1 kK/W.
Quick Reference Table
| Kelvin per horsepower (K/hp) | Degree Celsius per milliwatt (°C/mW) |
|---|---|
| 1 K/hp | 1.341 × 10-6 °C/mW |
| 2 K/hp | 2.682 × 10-6 °C/mW |
| 5 K/hp | 6.705 × 10-6 °C/mW |
| 10 K/hp | 1.341 × 10-5 °C/mW |
| 25 K/hp | 3.353 × 10-5 °C/mW |
| 50 K/hp | 6.705 × 10-5 °C/mW |
| 100 K/hp | 0.000134102 °C/mW |