Cc to hp conversion chart for small engines?

A cc (cubic centimeter) to hp (horsepower) conversion for small engines is not a direct formula, as horsepower can be influenced by factors like engine efficiency and design. However, a rough estimate is that 1 hp is generally equivalent to about 15 cc for small gasoline engines. Therefore, for a small engine, you can estimate its horsepower by dividing the cc by 15. Keep in mind that this is a general guideline and actual performance may vary.