Professional Builder Suite

Build your complete hunting arrow

Calculate total weight, FOC, estimated speed, kinetic energy, momentum, grains per pound, and a practical spine risk indicator. Save up to three builds for side-by-side comparison.

Builder Suite Compare Builds

Arrow configuration

Master arrow database

630 website-ready shaft records loaded from the WCA Master Workbook. Select a manufacturer, model, and spine to automatically populate shaft specifications.

Manufacturer

Model

Spine / shaft record

Database ready: 630 shafts and 191 component records.

Build identity

Build name

Selected shaft/model

Bow inputs

Draw weight (lb)

Draw length (in)

IBO speed (fps)

Shaft and components

Spine

Shaft GPI

Carbon length (in)

Point/broadhead (gr)

Insert/outsert (gr)

Other front weight (gr)

Nock library

Nock weight (gr)

Fletching library

Vane count

Total vane weight (gr)

Wrap/other rear (gr)

Measured values optional but preferred

Measured speed (fps)

Balance point from nock groove (in)

Important: Calculations are planning estimates, not a substitute for manufacturer spine charts, physical arrow inspection, professional setup, paper tuning, bare-shaft testing, and broadhead tuning. Never shoot an arrow below the bow manufacturer’s minimum grains-per-pound requirement.