1. What is kW to HP Conversion?

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.

2. How Does the Conversion Work?

The conversion uses the formula:

Where:

• \( HP \) — Power in horsepower
• \( P_{kW} \) — Power in kilowatts

Explanation: 1 kilowatt is approximately equal to 1.341 horsepower, based on the mechanical horsepower definition.

3. Importance of Power Unit Conversion

Details: Accurate conversion between kW and HP is essential for equipment specification, performance comparisons, and international standards compliance.

4. Using the Calculator

Tips: Simply enter the power value in kilowatts (must be > 0) and the calculator will automatically compute the equivalent horsepower.

5. Frequently Asked Questions (FAQ)

Q1: What is the exact conversion factor?
A: 1 kW = 1.34102209 HP (mechanical horsepower) or 1 kW = 1.35962162 HP (metric horsepower).

Q2: Why are there different horsepower definitions?
A: Mechanical HP (550 ft-lb/s) is used in US/UK, while metric HP (75 kgf-m/s) is common in Europe. This calculator uses mechanical HP.

Q3: When would I need this conversion?
A: When comparing engine specifications, sizing motors, or working with international equipment documentation.

Q4: How accurate is this conversion?
A: The conversion is mathematically exact, though real-world power measurements may have instrumentation variances.

Q5: Can I convert HP back to kW?
A: Yes, use the inverse formula: kW = HP / 1.341 or use our HP to kW conversion tool.