Conversion Formula:
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The HP to kW conversion calculates kilowatts from horsepower using the standard conversion factor. This is essential for comparing power outputs between different measurement systems used internationally.
The calculator uses the conversion formula:
Where:
Explanation: This formula provides a direct conversion between mechanical horsepower and kilowatts, the standard SI unit of power.
Details: Accurate power conversion is crucial for engineering applications, equipment specifications, international standards compliance, and energy efficiency calculations across different measurement systems.
Tips: Enter horsepower value (must be greater than 0). The calculator will automatically compute the equivalent power in kilowatts.
Q1: Why is the conversion factor 0.7457?
A: This is the standard conversion factor where 1 mechanical horsepower equals approximately 0.7457 kilowatts.
Q2: Are there different types of horsepower?
A: Yes, there are mechanical, metric, and electrical horsepower with slightly different conversion factors. This calculator uses mechanical horsepower.
Q3: When is this conversion most commonly used?
A: Commonly used in automotive industry, machinery specifications, electrical engineering, and international equipment standards.
Q4: How accurate is this conversion?
A: The conversion is mathematically precise based on the standard definition of 1 HP = 745.7 watts.
Q5: Can I convert kW back to HP?
A: Yes, the reverse conversion is HP = kW ÷ 0.7457 or HP = kW × 1.341.