# Kinetic / Muzzle Energy Calculator

I made shortly after getting into shooting, to calculate the kinetic energy of different projectiles.
Using this formula to calculate kinetic energy, with automatic unit conversion: KE = 1/2mv²
`(Kinetic Energy = 0.5 * mass in kg * (meters per second ^ 2)).` Muzzle energy is not always easy to handle.
 (G) Gram (Gr) Grain (MPS) Meters Per Second (FPS) Feet Per Second

Additional notes of potential interest:

For a constant velocity, if the mass is doubled, the energy is doubled.
For a constant mass, if the velocity is doubled, the muzzle energy increases four times.

Pound-Foot (lb-ft) and Foot-Pound (ft-lb), are NOT interchangeable / NOT the same!

The "POUND-FOOT" (lb-ft) (TORQUE/lever-energy) is a unit of torque and a vector measurement that is created by:
ONE POUND OF FORCE ACTING ON A ONE FOOT LEVER.

The "FOOT-POUND" (ft-lb) (ENERGY/linear-energy) is a scalar unit and measurement of work required to:
MOVE A ONE POUND OBJECT, ONE FOOT OF LINEAR DISTANCE.

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