Arrow FOC Calculator: Optimize Your Archery Front of Center for Precision

Calculate Your Arrow's Front of Center (FOC)

inches
Measure from the deepest part of the nock groove to the tip of the broadhead or field point.
inches
Find the point where your arrow balances horizontally, then measure from the deepest part of the nock groove to this point.

Unlock your arrow's full potential with our free Arrow FOC Calculator. Accurately determine your Front of Center percentage for improved arrow flight stability, enhanced accuracy, and better penetration. A critical tool for competitive archers and hunters seeking peak performance and a perfectly tuned setup.

Formula:

The Front of Center (FOC) percentage is calculated using the following formula:

FOC (%) = ((Balance Point - Physical Center) / Total Arrow Length) × 100

Where:

  • Total Arrow Length (L): Measured from the deepest part of the nock groove to the tip of the broadhead or field point.
  • Balance Point (B): The distance from the deepest part of the nock groove to the arrow's balance point.
  • Physical Center (C): Half of the Total Arrow Length (L / 2).

This calculator simplifies the process by taking your arrow's total length and balance point to provide an accurate FOC percentage.

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