1. What is HP to kW Conversion?

Definition: This calculator converts power measurements from horsepower (HP) to kilowatts (kW).

Purpose: It helps engineers, mechanics, and technicians convert between these common power units used in different measurement systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: 1 mechanical horsepower is equal to exactly 0.74569987 kilowatts, typically rounded to 0.746 for practical calculations.

3. Importance of Power Unit Conversion

Details: Converting between HP and kW is essential when working with equipment specifications that use different measurement systems (imperial vs metric).

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 0.746?
A: This is the exact conversion factor defined by the international standard, where 1 HP = 745.69987 watts = 0.74569987 kW.

Q2: Does this work for all types of horsepower?
A: This calculator uses mechanical horsepower (also called imperial horsepower). Other types (metric, boiler, electrical) have slightly different conversion factors.

Q3: When would I need to convert HP to kW?
A: Common when comparing engine specifications, sizing electrical systems, or working with international equipment documentation.

Q4: How accurate is this conversion?
A: Using 0.746 gives accuracy to three decimal places, sufficient for most practical applications.

Q5: Can I convert kW back to HP?
A: Yes, divide kW by 0.746 or use our kW to HP calculator tool.