How do you convert cc to hp on lawn mowers?

To convert cubic centimeters (cc) to horsepower (hp) for lawn mowers, you can use a general rule of thumb that estimates 1 hp for every 15 cc of engine displacement. This means that to find the horsepower, you can divide the engine's cc by 15. For example, a 150 cc engine would roughly be equivalent to 10 hp (150 ÷ 15 = 10). However, this is a rough estimate, as actual performance can vary based on engine design and efficiency.