Golf Shaft Flex Calculator
Golf Shaft Flex Calculator – Find The Perfect Flex For Your Swing
Wondering what golf shaft flex is right for you? Use our free Golf Shaft Flex Calculator to get a quick recommendation based on your driver swing speed and swing tempo.
Shaft flex plays a huge role in how your shots launch, curve, and feel. Getting the right flex can lead to better accuracy, distance, and consistency off the tee.
Find your ideal golf shaft flex based on your driver and 7 iron swing speeds, plus your swing tempo.
| Driver Swing Speed (mph) | Recommended Shaft Flex |
|---|---|
| Below 75 | Ladies Flex (L) |
| 75–85 | Senior Flex (A) |
| 85–95 | Regular Flex (R) |
| 95–105 | Stiff Flex (S) |
| Over 105 | Extra Stiff Flex (X) |
What This Calculator Does:
Takes your driver and 7-iron swing speed (mph)
Asks for your swing tempo (slow, moderate, fast)
Returns your ideal shaft flex:
Ladies
Senior (A-Flex)
Regular (R)
Stiff (S)
Extra Stiff (X)
Why Shaft Flex Matters:
Using the wrong flex can lead to:
Inconsistent ball flight
Loss of distance
Poor feel and control
Difficulty with trajectory and spin
With the right flex, the shaft loads and unloads in sync with your swing, delivering more solid contact and better results.
How to Measure Swing Speed:
Use a launch monitor or swing radar
Check data at your local golf store or fitting studio
Use a speed chart based on your average driver distance (optional)