How many centimeter long is about a football?

A standard American football is approximately 28 centimeters long. In contrast, a soccer ball (football in many countries) has a circumference of about 68 to 70 centimeters, which translates to a diameter of roughly 22 to 22.5 centimeters. Thus, depending on the type of football, the length or diameter can vary, but a typical American football measures around 28 centimeters.