Kinetic Energy
Enter required information below to calculate your Kinetic Energy.
For more information on understanding kinetic energy and to see formulas click here.
Arrow Weight (grains)
Arrow Velocity (fps)
 
 
Results:
Arrow Weight and FOC (forward of Center Balance)
Enter required information below to calculate your finished arrow weight and FOC.
For more information on understanding arrow weight and FOC click here.
Shaft Weight (grains per inch)
Shaft Length (inches)
Nock Weight (grains)
Bushing/Nock Adapter Weight (grains)
Number of Vanes
Vane Weight per (weight of one vane in grains)
Point Weight (grains)
Insert Weight (grains)
Arrow Wrap/Cresting Weight (grains)
Additional Point Weight (grains)
 
 
Results:
FOC
FOC stands for Front of Center balance point. This measurement results from the relative weights of the components
used in the arrow: shaft, insert, head, fletching, and nock. A properly balanced arrow measurements of 7 to 15%.
For understanding FOC please click here.
 
The Arrow Weights above must be filled in to calculate FOC
 
 
Results:
 
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