Foot-Pounds of Energy

Calculate kinetic energy in foot-pounds (ft-lb) and convert to other units.

Energy Parameters

Kinetic Energy (ft-lb)

Weight (lbs)

Velocity (fps)

OR CONVERT

Energy (Joules)

Conversion & Calculation

Enter weight and velocity

About this calculator

Quick Reference

1 ft-lb1.3558 Joules

g (standard)32.174 fps²

vVelocity (feet per sec)

WWeight (pounds)

Overview

Foot-pound (ft-lb) is an English unit of work or energy. It represents the energy required to lift a one-pound weight a distance of one foot.

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Pro Tips

Fun Facts

"A typical .22 LR bullet has a muzzle energy of about 100 to 150 ft-lb."
"A major league baseball pitch has around 90-100 ft-lb of energy."
"The term 'foot-pound' is also used for torque, which is conceptually different but uses the same dimensions (force × distance)."

Formula: E = (W × v²) / (2g)