Conversion Formula:
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The kW to HP conversion is used to translate power measurements between kilowatts (metric system) and horsepower (imperial system). This conversion is commonly used in automotive, engineering, and industrial applications.
The calculator uses the conversion formula:
Where:
Explanation: One mechanical horsepower is equivalent to approximately 0.7457 kilowatts, making the conversion factor 1/0.7457 ≈ 1.34102.
Details: Accurate power unit conversion is essential when working with international specifications, comparing engine performance, or interpreting technical documents from different measurement systems.
Tips: Enter the power value in kilowatts (kW). The value must be positive. The calculator will automatically compute the equivalent horsepower (HP).
Q1: What's the difference between kW and HP?
A: Kilowatt (kW) is a metric unit of power, while horsepower (HP) is an imperial unit. 1 HP equals about 0.7457 kW.
Q2: Are there different types of horsepower?
A: Yes, this calculator uses mechanical horsepower (also called imperial horsepower). Metric horsepower (PS) uses a slightly different conversion factor (1 kW = 1.35962 PS).
Q3: Why is the conversion factor 1.34102?
A: This is the exact conversion factor based on the definition that 1 HP = 550 foot-pounds per second = 745.7 watts.
Q4: When would I need this conversion?
A: Common uses include comparing engine specifications, understanding international power ratings, and converting between metric and imperial system documentation.
Q5: How precise is this conversion?
A: The conversion factor is mathematically exact, though real-world measurements may have precision limitations based on measurement equipment.