The foot-pound force, or simply foot-pound (symbol: ft·lbf or ft·lb)'s a unit of work or energy (a scalar) and also a unit of torque (a vector). Other Units of Energy One foot-pound force's the amount of energy expended when one pound-force acts through a distance of one foot along the direction of the force. 1 foot-pound force's equivalent to: 1.3558179483314004 joules (exactly) 13558179.483314004 ergs (exactly) 12 inch-pound force (exactly) 192 inch-ounce force (exactly) 0.0012… (More on Foot-pound)