Professional Metric Horsepower (hp M / PS) to BTU per Hour (BTU/h) converter. 100% accurate for 2026 international HVAC design, engine heat rejection audits, and thermal scaling.
In the global engineering landscape of 2026, precision across measurement systems is the cornerstone of technical success. The Metric Horsepower (hp M)u2014frequently referred to as PS (Pferdestu00e4rke)u2014is the standard unit for rating engine output in Europe, Asia, and South America. Conversely, the British Thermal Unit per hour (BTU/h) is the primary imperial unit for quantifying heating and cooling capacity. Converting Metric Horsepower to BTU per hour is a foundational task for 2026 automotive engineers, HVAC designers, and energy auditors who must translate mechanical engine performance (PS) into the thermal rejection or heating metrics (BTU/h) required for 2026 equipment specifications and cooling system sizing.
Metric Horsepower is defined as the power required to lift a 75-kilogram mass one meter vertically in one second. In 2026, this value is fixed at exactly 735.49875 Watts. It is the legal standard for technical documentation across much of the globe, used for everything from high-performance automotive engines to industrial turbines. Because PS is the primary metric for mechanical work in international markets, it serves as the stable baseline for 2026 mechanical performance tracking.
A BTU per hour is an imperial unit of power defining the rate of heat transfer. One BTU is the heat required to raise the temperature of one pound of water by one degree Fahrenheit. In 2026, BTU/h remains the definitive unit for sizing radiators, chillers, and industrial furnaces in North America. Understanding the BTU/h equivalent of a Metric Horsepower rating is essential for determining the heat rejection requirements of an engineu2014ensuring that the cooling system can dissipate the thermal energy generated by the mechanical work.
The relationship between Metric Horsepower and BTU per hour is a fixed physical constant based on the 735.5-watt identity. To convert Metric Horsepower to BTU per hour, you multiply the hp (M) value by approximately 2,509.63:
At AiCalculo, our engine utilizes this high-precision 2026 identity to ensure that your machinery blueprints, automotive reports, and industrial audits are 100% accurate, allowing for zero-error scaling between metric work and imperial thermal units.
| Metric HP (hp M / PS) | BTU per Hour (BTU/h) | Wattage Equivalent |
|---|---|---|
| 1.0 PS | 2,510 BTU/h | 735.5 W |
| 5.0 PS | 12,548 BTU/h | 3,677.5 W |
| 50.0 PS | 125,481 BTU/h | 36,775.0 W |
| 100.0 PS | 250,963 BTU/h | 73,550.0 W |
In 2026, automotive engineers designing global vehicle platforms often receive engine ratings in **PS** from European headquarters. To size the radiator or intercooler (measured in **BTU/h**) for the North American market, this conversion is foundational. AiCalculo provides the precise 2026 figures needed to ensure that thermal management capacity matches mechanical output.
Facility managers in 2026 monitoring the heat dissipation of industrial motors (rated in **PS**) use this conversion to determine the total thermal load (measured in **BTU/h**) that the building's HVAC system must mitigate. Our tool bridges this technical gap instantly, supporting the accuracy of 2026 global mechanical and energy research.