The imperial system is a system of measurement that originated in the British Empire. It includes units such as inches, feet, yards, and miles for length, and pounds and ounces for weight. This system is primarily used in the United States and a few other countries, making it distinct from the metric system, which is more widely adopted globally. In the imperial system, measurements are often based on traditional units rather than a decimal system. For example, there are 12 inches in a foot and 3 feet in a yard. This can make calculations more complex compared to the metric system, where units are based on powers of ten.