HP to Watts Conversion
The horsepower to watts conversion is commonly used in both the United States and the United Kingdom when comparing mechanical engine power with electrical power output. Horsepower (HP) is widely used in the US and UK to describe engines, motors, and machinery, while watts (W) are the standard metric unit of power used in electrical systems worldwide.
Understanding how to convert horsepower to watts is important when working with electric motors, generators, power tools, and industrial equipment. Many technical specifications list power ratings in watts, especially for electrical devices, while traditional engines are still rated in horsepower.
Horsepower to Watt Conversion Formula:
Watts = Horsepower × 745.7
To convert horsepower into watts, multiply the horsepower value by 745.7. For example, if a motor produces 5 horsepower, multiplying by 745.7 gives approximately 3,728.5 watts. This conversion factor is widely accepted and used in both US and UK engineering and electrical calculations.
HP to watts conversions are frequently used in automotive engineering, electrical system design, renewable energy projects, and industrial power planning. While horsepower remains a familiar unit for engine performance, watts provide a precise and standardized way to measure electrical power consumption and output.
Using a conversion table or calculator helps save time and reduces calculation errors. The horsepower to watts conversion table below provides commonly used values, making it easy to convert HP to watts quickly and accurately.
Horsepower to Watts Conversion Table
| Horsepower (HP) | Watts (W) |
|---|---|
| 1 HP | 745.7 W |
| 2 HP | 1,491.4 W |
| 5 HP | 3,728.5 W |
| 10 HP | 7,457 W |
| 15 HP | 11,185.5 W |
| 20 HP | 14,914 W |
| 25 HP | 18,642.5 W |
| 50 HP | 37,285 W |
| 75 HP | 55,927.5 W |
| 100 HP | 74,570 W |
| 150 HP | 111,855 W |
| 200 HP | 149,140 W |