Enter required information below to calculate your Kinetic Energy.

For more information on understanding kinetic energy and to see formulas click here.

Enter required information below to calculate your finished arrow weight and FOC.

For more information on understanding arrow weight and FOC click here.

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 10%.

For understanding FOC please click here.

 

The Arrow Weights above must be filled in to calculate FOC