Horsepower to Kilocalorie per Hour Converter

Horsepower (hp) is a unit of power originally defined as the power needed to lift 550 pounds one foot in one second, approximately equal to 746 watts. It was created to compare the output of steam engines with the power of draft horses.

Horsepower was defined by James Watt around 1782 to market his steam engines by comparing their output to the familiar power of horses. It became the standard unit for mechanical power in English-speaking countries and remains widely used despite the adoption of SI units.

Horsepower is extensively used in automotive engines, mechanical equipment, and motor specifications. It's standard for car engine ratings, industrial machinery, pumps, and mechanical power transmission systems, particularly in the United States.

Kilocalorie per hour (kcal/h) is a unit of power representing the rate of energy transfer of one kilocalorie per hour. It's commonly used in heating and cooling applications, providing a practical scale for thermal power measurements.

Kilocalorie per hour became important in heating and cooling system design, providing a convenient scale for thermal power measurements. It was particularly useful in applications where thermal energy rates needed to be expressed in familiar calorie-based units.

Kilocalorie per hour is used in heating and cooling systems, thermal equipment ratings, and energy efficiency calculations. It's standard for thermal system specifications, heating equipment ratings, and applications where thermal power is measured in calorie-based units.