Metric Horsepower (PS) to BTU/hour Converter
Enter a value to instantly convert between power units.
1 Horsepower (metric) = 2509.6259 BTU/hour
Key Formulas
Kilowatt → Horsepower (mech)
hp = kW × 1.34102Horsepower (mech) → Kilowatt
kW = hp × 0.7457Watt → Kilowatt
kW = W × 0.001Kilowatt → Watt
W = kW × 1000Formula
BTU/h = PS × 2509.63When installing European machinery in North American facilities, engineers often need to convert the machine's PS power rating to BTU/h to calculate the heat it adds to the room — which determines the HVAC cooling load. A 20 PS industrial motor running continuously adds 50,193 BTU/h to the environment, guiding the selection of supplemental cooling equipment.
Source: NIST SP 811, Table B.8
Last reviewed: · see our methodology
Frequently Asked Questions
Real-World Examples
1 PS = 2,510 BTU/h — slightly less than the 2,544 BTU/h of a mechanical horsepower, reflecting the 1.4% lower energy content of PS.
1 PS = 2510 BTU/h
A 10 PS European machine tool motor = 25,096 BTU/h total power consumption, helping determine HVAC sizing for the workspace.
10 PS = 25096 BTU/h
A 75 PS pump motor = 188,222 BTU/h — requiring about 16 tons of cooling capacity if the motor room has no other ventilation.
75 PS = 188222 BTU/h
A 100 PS industrial drive = 250,963 BTU/h — used to calculate heat gain in North American equipment enclosure design.
100 PS = 250963 BTU/h