A foot pound is the amount of energy used when applying one pound of force over the distance of one foot (specifically, with the direction of the force being th

A foot pound is the amount of energy used when applying one pound of force over the distance of one foot (specifically, with the direction of the force being the same as the direction of movement). So, if you use one pound of force to move an object one foot, you have used one foot pound of energy (or about 1.355 Joules). Pounds per surface area is pressure. Foot pounds per surface area is something else.