What is the conversion for a 140 cc to hp in a Briggs?

To convert cubic centimeters (cc) to horsepower (hp) for a Briggs & Stratton engine, a general rule of thumb is that 1 cc is approximately equivalent to 0.0005 hp. Therefore, a 140 cc engine would be roughly 0.07 hp. However, actual horsepower can vary based on engine design and efficiency, so it's best to refer to the manufacturer's specifications for precise figures.