Calculators
Free tools for archers. Work out your draw length, handicap, sight marks, and arrow spine.
Draw Length
Estimate your draw length from your wingspan, with AMO draw length and a suggested arrow length.
Open calculator →Handicap (Archery GB)
Convert a round score to an Archery GB handicap and back, and build a sight mark table.
Open calculator →Arrow Spine
Find a starting arrow spine from draw weight, arrow length, and point weight using published charts.
Open calculator →Kinetic energy
Turn arrow weight and chronograph speed into kinetic energy in ft·lbf and joules.
Open calculator →FOC
Find front-of-centre from length and balance point, or estimate it from component weights.
Open calculator →Eye dominance test
Three guided tests to see which eye is dominant for aiming — share your result with a link.
Open tool →Which bow type?
Eight questions to suggest recurve, compound, barebow, or traditional — no scores stored.
Open tool →Bow size
Bow length from draw length, draw weight estimator, beginner bands, and arrow length.
Open tool →Printable targets
A World Archery 10-zone face to scale, as a vector PDF for home printing or a print shop.
Open tool →