Golf Shaft Flex Calculator

Find your optimal shaft flex based on swing speed, ball flight, and playing characteristics. Proper shaft flex improves distance, accuracy, and overall performance.

Swing Analysis

Use a launch monitor or estimate based on distance

Total distance including roll

Understanding Shaft Flex

Shaft Flex Basics:

Shaft flex refers to how much the shaft bends during the swing. The right flex helps optimize launch conditions, spin rate, and overall performance.

Flex Options:
  • Ladies (L): Softest flex, highest launch
  • Senior (A): Soft flex for moderate speeds
  • Regular (R): Most common, balanced performance
  • Stiff (S): Firm flex for faster speeds
  • Extra Stiff (X): Firmest, for tour-level speeds

Impact of Wrong Flex

Too Stiff:

Low ball flight, slice tendency, loss of distance, harsh feel, difficulty getting ball airborne.

Too Soft:

High ball flight, hook tendency, loss of accuracy, inconsistent contact, loss of control.

Proper Fit:

Optimal launch angle, good feel, improved accuracy, maximum distance for your swing speed.

Professional Shaft Fitting Recommendations

Key Measurements

  • Swing speed with launch monitor
  • Ball flight analysis
  • Spin rate measurements
  • Launch angle optimization
  • Dispersion patterns

Shaft Properties

  • Flex profile (tip/butt flex)
  • Kick point (bend location)
  • Weight considerations
  • Torque characteristics
  • Material composition

When to Get Fitted

  • New equipment purchase
  • Significant swing changes
  • Inconsistent ball flight
  • Age-related strength changes
  • Performance plateau