Convert Second-degree Fahrenheit per BTU to Kelvin per horsepower

Convert Second-degree Fahrenheit per BTU (s·°F/BTU) to Kelvin per horsepower (K/hp) instantly and accurately.

Conversion Formula

K/hp = s·°F/BTU × 0.3926595027

About Second-degree Fahrenheit per BTU

The second-degree Fahrenheit per BTU (s·°F/BTU) equals (5/9)/1055.05585262 K/W ≈ 5.265 × 10⁻⁴ K/W. Used in US aerospace and nuclear engineering where thermal transient analyses express power as BTU/s and temperature in °F, e.g. rocket engine heat rejection and reactor coolant loop calculations. 1 s·°F/BTU ≈ 5.265 × 10⁻⁴ K/W.

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.

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