SwingCalc is a comprehensive golf performance and club fitting hub built around fourteen calculators that cover every variable on a launch monitor printout — swing weight, smash factor, ball flight, lie angle, shaft CPM, carry distance, MOI, ball compression, loft optimization, shot shape, stance width, grip size, swing tempo and the full 14-club distance chart. The numbers powering these tools come from the same physics models used by Trackman, FlightScope, GCQuad, KBS, True Temper, Mitsubishi and the major OEMs (Titleist, TaylorMade, Callaway, Ping, Mizuno), so a recommendation produced here is directly comparable to the report a professional fitter at Club Champion or True Spec would hand you after a session. Whether you are a senior golfer rebuilding a bag around a slower clubhead speed, a tournament player tuning a 1 percent edge on driver smash, a DIY builder pulling shafts from the second-hand market, or a new golfer trying to understand why your 7-iron flies left, the toolkit is designed to translate raw measurements into actionable equipment and technique decisions.
Each tool isolates a single fitting variable and exposes the formula that drives it, then layers in real-world tolerances. Swing weight uses the Lorythmic D-scale with a 14-inch fulcrum. Smash factor divides ball speed by clubhead speed against loft-adjusted benchmarks. Ball flight integrates Newton's second law with USGA-conforming drag and Magnus lift to plot apex, descent and carry. Lie angle maps wrist-to-floor against height using the Ping Color Code matrix. Shaft CPM converts frequency readings into the universal stiffness scale shared across True Temper, Project X and Fujikura. Carry distance corrects for altitude (about 8-10 percent more carry at 5,000 feet), temperature (roughly 1 yard per 10 °F) and wind. MOI checks USGA compliance against the 5,900 g·cm² heel-toe limit. Ball compression matches deformation rates to swing speed. Loft-to-carry, shot shaper, stance width, grip size, swing tempo and the distance chart each follow the same evidence-first approach: real measurements, transparent formulas, fitting-bay-grade output.