Arrow Calculators

Free TitleX archery calculators — draw length, spine, FOC, kinetic energy and momentum, steep-shot pin yards, and ±3-yard flight. No account. Pick the number you need. Confirm the dozen in the 3D custom arrow builder.

Calculator defaults — save your draw weight, IBO, arrow weight, and other starting numbers once. Every calculator opens with your saved values (stored in this browser).

Bench tools

• Draw length calculator — height, wingspan, or a measured AMO number.
• Arrow spine calculator — starting 250–400 pick for TX-5, Mach XV, or TX-23, plus GPI.
• FOC calculator — front of center from cut length and balance point.
• Kinetic energy calculator — fps, foot-pounds, momentum, and GPP.
• 3D custom arrow builder — build the dozen and see grains and FOC update.

Field tools

• Shot angle calculator — line-of-sight yards and angle to pin yards.
• Arrow flight calculator — drag path, drop, and a ±3-yard miss band.

Related resources: arrow guides, how to measure draw length, paper tuning, 3D custom arrow builder.