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Horsepower (HP) and kilowatt (kW) are both units of power measurement. While horsepower is commonly used in the automotive and mechanical industries, kilowatt is the standard SI unit for power. Converting between these units is essential for international standards and comparisons.
The calculator uses the conversion formula:
Where:
Explanation: This formula provides the exact conversion from mechanical horsepower to kilowatts based on international standards.
Details: Accurate power unit conversion is crucial for engineering calculations, international equipment specifications, energy efficiency comparisons, and compliance with different measurement standards across countries.
Tips: Enter horsepower value in the input field. The value must be a positive number. The calculator will automatically compute the equivalent value in kilowatts.
Q1: Is the conversion factor the same for all types of horsepower?
A: This calculator uses the mechanical horsepower conversion factor. There are slight variations for metric horsepower (1 HP = 0.7355 kW) and other definitions.
Q2: Why is power conversion important?
A: Different countries use different power units, so conversion is essential for international trade, equipment specifications, and technical documentation.
Q3: How accurate is this conversion?
A: The conversion factor 0.7457 is standardized and provides precise conversion between mechanical horsepower and kilowatts.
Q4: Can I convert kilowatts back to horsepower?
A: Yes, to convert kilowatts to horsepower, divide the kilowatt value by 0.7457 (HP = kW ÷ 0.7457).
Q5: Where is horsepower commonly used?
A: Horsepower is primarily used in the automotive industry (engine power), as well as for rating electrical motors and other machinery in some countries.