Arrow FOC Calculator
Calculate Front of Center (FOC) percentage to determine arrow balance and flight characteristics for target or hunting use.
Inputs
in
in
Results
FOC Percentage
7.1%
ClassificationLow — target shooting OK
Hunting AdequateNo
How to Use This Calculator
- Measure your Total Arrow Length from nock groove to end of shaft (excluding point).
- Find the balance point by resting the arrow on a finger and measuring from the nock groove.
- Enter both measurements in inches.
- Review your FOC Percentage — 10-15% is ideal, 15-19% suits hunting.
- Check the Classification and Hunting Adequate assessment for your setup.
Ad Placeholder
Related Calculators
Arrow Build Calculator
Calculate total arrow weight, grains per inch, and FOC from individual component weights for custom arrow builds.
Arrow Spine Calculator
Determine the correct arrow spine based on draw weight, draw length, point weight, and string type for optimal arrow flight.
Arrow Kinetic Energy Calculator
Calculate arrow kinetic energy and momentum to determine hunting adequacy for different game sizes.
Ad Placeholder