Home
Back
Power to Horsepower Formula:
| From: | To: |
The Power to Horsepower formula converts electrical power in watts to mechanical power in horsepower. This conversion is essential in various engineering applications where power measurements need to be translated between different unit systems.
The calculator uses the power to horsepower conversion formula:
Where:
Explanation: The formula provides a direct conversion between the metric system (watts) and the imperial system (horsepower) for power measurements.
Details: Accurate power conversion is crucial for comparing engine performance, sizing electrical motors, and ensuring compatibility between different measurement systems in international engineering projects.
Tips: Enter power value in watts. The value must be positive and greater than zero. The calculator will automatically compute the equivalent horsepower.
Q1: Why is the conversion factor 745.7?
A: This value comes from the definition of 1 horsepower as the power needed to lift 550 pounds by 1 foot in 1 second, which equals approximately 745.7 watts.
Q2: What is the difference between mechanical and electrical horsepower?
A: Mechanical horsepower (hp) is 745.7 watts, while metric horsepower (PS) is 735.5 watts. This calculator uses mechanical horsepower.
Q3: When is this conversion most commonly used?
A: Commonly used in automotive industry, motor specifications, and when comparing electrical motor power to mechanical engine power.
Q4: Are there different types of horsepower?
A: Yes, including brake horsepower (bhp), indicated horsepower (ihp), and metric horsepower (PS), each with slightly different conversion factors.
Q5: How accurate is this conversion?
A: The conversion is mathematically precise based on the defined relationship between watts and horsepower.