poundfeet

Poundfeet is a unit of torque, a measure of rotational force. It is the product of a pound-force and a foot. Specifically, it represents the torque generated when a force of one pound is applied perpendicular to a lever arm that is one foot long. The poundforce is a unit of force commonly used in the United States customary and British imperial systems of measurement. The foot is a unit of length in these same systems.

The concept of torque is fundamental in physics and engineering, describing how a force causes an object to rotate around an axis. Poundfeet are often encountered in automotive contexts, particularly when discussing engine power or the tightening of bolts and fasteners. While the poundforce and foot are imperial units, poundfeet can be converted to the SI unit of torque, the newton-meter, by multiplying by approximately 1.3558. It is important to distinguish poundfeet from the pound-foot, which is a unit of energy or work. Torque is a vector quantity, but poundfeet as a unit typically refers to its magnitude. The definition of poundfeet is analogous to other torque units like the newton-meter, where a force is multiplied by a distance.