Home Back

Power Conversion Calculator HP To KW

Horsepower to Kilowatts Formula:

\[ kW = HP \times 0.7457 \]

hp

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Horsepower to Kilowatts Conversion?

The horsepower to kilowatts conversion is a standard power unit conversion used in engineering, automotive, and electrical applications. It converts mechanical power (horsepower) to electrical power (kilowatts) using a precise conversion factor.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

\[ kW = HP \times 0.7457 \]

Where:

Explanation: One mechanical horsepower is equivalent to approximately 0.7457 kilowatts. This conversion factor is standardized and widely accepted in international engineering standards.

3. Importance of Power Conversion

Details: Accurate power conversion is essential for comparing engine performance, electrical system design, international equipment specifications, and compliance with different measurement systems used worldwide.

4. Using the Calculator

Tips: Enter horsepower value in the input field. The value must be positive and valid. The calculator will automatically compute the equivalent kilowatts using the standard conversion factor.

5. Frequently Asked Questions (FAQ)

Q1: What is the exact conversion factor from HP to kW?
A: The exact conversion factor is 0.745699872 kilowatts per horsepower, commonly rounded to 0.7457 for practical calculations.

Q2: Are there different types of horsepower?
A: Yes, there are mechanical horsepower (hp), metric horsepower (PS), and electrical horsepower. This calculator uses mechanical horsepower (1 hp = 745.7 W).

Q3: Why is power conversion important in automotive industry?
A: It allows comparison between different power rating systems used in various countries and helps in understanding engine performance across different measurement standards.

Q4: Can this calculator be used for electric motors?
A: Yes, but note that electric motors may use electrical horsepower. For precise conversions, ensure you're using the correct horsepower type for your application.

Q5: How accurate is this conversion?
A: The conversion is mathematically precise using the standard factor. However, real-world power measurements may have slight variations due to measurement methods and conditions.

Power Conversion Calculator HP To KW© - All Rights Reserved 2025