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Kilowatts (kW) to horsepower (HP) conversion is used to translate power measurements between the metric system (kilowatts) and imperial system (horsepower). This conversion is essential in automotive, engineering, and industrial applications where power output needs to be understood in different measurement systems.
The calculator uses the standard conversion formula:
Where:
Explanation: The conversion factor 1.34102 represents the exact relationship between kilowatts and mechanical horsepower, where 1 horsepower is defined as approximately 745.7 watts.
Details: Accurate power conversion is crucial for comparing engine performance, sizing electrical equipment, international engineering projects, and understanding power specifications across different measurement systems used worldwide.
Tips: Enter the kilowatt value in the input field. The value must be zero or positive. The calculator will automatically compute the equivalent horsepower using the standard conversion factor.
Q1: What is the difference between mechanical and metric horsepower?
A: Mechanical horsepower (used here) equals 745.7 watts, while metric horsepower equals 735.5 watts. Always verify which standard is being referenced.
Q2: How accurate is the conversion factor?
A: The factor 1.34102 is precise for most practical applications. For exact scientific calculations, use 1 kW = 1.34102209 HP.
Q3: Can this calculator be used for electric motors?
A: Yes, the conversion works for any power measurement regardless of the source (combustion engines, electric motors, etc.).
Q4: What are typical kW to HP values for cars?
A: A typical family car might have 100-150 kW (134-201 HP), while performance cars can range from 200-400 kW (268-536 HP) or more.
Q5: Is there a simple way to estimate the conversion?
A: For quick estimates, you can multiply kW by 1.34 to get approximate HP, but for precise calculations use the exact factor.