This FOC calculator helps you calculate the percentage of the front of the center of your arrow.
Enter your arrow length and the balance point to find the FOC%.
Simply put, FOC is the arrow’s front half weight. It matters to those competing in 3-D and FITA Archery contests when shots are long, and competition is severe.
Perfect FOC % improves arrow performance and accuracy.
Good F.O.C. percentages improve accuracy and penetration.
More weight in the front portion of the arrow increases the first wallop.