Kinetic Energy, Momentum & FOC Calculator
How hard does your arrow actually hit — and is it balanced for penetration? Enter your arrow weight and real speed for kinetic energy and momentum, then your shaft measurements for front-of-center.
Kinetic energy & momentum
Shaft + point + insert + nock + fletching.
Chronographed if possible — not the IBO rating.
Front of center (FOC)
Nock throat to shaft end (AMO).
Balance the finished arrow on an edge; measure to that point.