Horsepower Formula:
From: | To: |
Definition: This calculator converts power measurements from kilowatts (kW) to horsepower (HP).
Purpose: It helps engineers, mechanics, and technicians convert between these common power units used in automotive, industrial, and electrical applications.
The calculator uses the formula:
Where:
Explanation: 1 kilowatt is approximately equal to 1.341 horsepower. This conversion factor is based on the mechanical definition of horsepower.
Details: Accurate conversion between kW and HP is essential for equipment specification, performance comparisons, and compliance with different measurement standards.
Tips: Simply enter the power value in kilowatts (must be > 0) and the calculator will display the equivalent horsepower.
Q1: What's the exact conversion factor?
A: The exact conversion is 1 kW = 1.34102209 HP, but 1.341 is commonly used for practical calculations.
Q2: Is this mechanical or electrical HP?
A: This calculates mechanical horsepower (550 ft-lbf/s). For metric horsepower (PS), use 1 kW = 1.35962 PS.
Q3: Why convert kW to HP?
A: While kW is standard in most countries, HP is still commonly used in automotive and some industrial applications.
Q4: How precise is this conversion?
A: The conversion is precise for most practical purposes, with less than 0.02% error using the 1.341 factor.
Q5: Can I convert HP back to kW?
A: Yes, use the inverse: kW = HP / 1.341 or kW = HP × 0.7457.