Horsepower to Watts Converter

Convert horsepower to watts instantly, using the mechanical horsepower where one horsepower is about 745.7 watts. This is the conversion for turning an engine, motor, or appliance rating from horsepower into watts or kilowatts, which is useful for sizing electrical supply, comparing power figures, and understanding modern EV specs. Type any number of horsepower and the watt value appears live as you type, carried to a couple of decimals for accuracy. Keep in mind there are two common horsepower definitions, mechanical and metric, and they differ slightly, so this tool uses mechanical horsepower at exactly 745.6998715822702 watts, the standard in English-speaking usage. To read the result in kilowatts, divide by 1000. It runs entirely in your browser, so the answer is instant, private, and works offline once the page has loaded.