ShotTally / Launch monitor & sim
Ball speed to carry distance calculator
Enter the ball speed off your launch monitor and get a realistic carry window for that club — plus estimated total distance. Built from launch monitor session data, and the formula is shown below.
How it works
Ball speed is the single strongest predictor of carry distance — it captures both your swing speed and your strike quality in one number. This tool converts ball speed to carry using linear coefficients fit to launch monitor averages for each club, assuming launch angle and spin are in a reasonable window for that club.
The rough rule of thumb — every 1 mph of driver ball speed is worth about 2 yards of carry — holds well between 120 and 180 mph. Below that range, spin loft eats efficiency; above it, you already know your numbers.
Why your sim number might differ
Indoor mats tend to add dynamic loft and reduce spin slightly, range balls fly 5–8% shorter than premium balls, and camera-based monitors extrapolate flight from launch data rather than tracking the full flight. Compare indoor sessions to indoor sessions, and use the sim vs outdoor converter to translate.
FAQ
Is ball speed or swing speed a better distance predictor?
Ball speed. Two golfers with identical swing speeds can differ by 10+ mph of ball speed based on strike quality alone, and that difference goes straight into carry distance. Swing speed measures potential; ball speed measures what you actually delivered.
How many yards is 1 mph of ball speed worth?
With a driver, roughly 2 yards of carry per mph, assuming launch and spin stay in a good window. With short irons it drops to about 1.5–1.7 yards per mph because loft converts more energy into height and spin.
Why is my real carry shorter than the calculator says?
Usually launch conditions. The model assumes near-optimal launch angle and spin for the club. Too much spin (common with driver), too little launch, cold air, or range balls will all trim the number.
What ball speed do I need to carry 250 yards?
Around 155 mph of driver ball speed with decent launch conditions. That corresponds to roughly 105 mph of clubhead speed at a 1.48 smash factor.