Bowling Ball Speed Calculator
Measure how fast you throw your bowling ball. Enter the time it takes your ball to travel from the foul line to the pins and instantly see your speed in MPH and KPH.
Everything You Need to Know About Ball Speed
How to Measure Your Ball Speed
The simplest method is to use a stopwatch or your phone's timer. Have a friend start the timer the instant you release the ball at the foul line, and stop it when the ball contacts the head pin. The standard distance from the foul line to the head pin is 60 feet. Enter that time into the calculator above to get your speed. For best results, average 3-5 throws to account for natural variation. Many modern bowling alleys also display ball speed on the scoring monitor, though that reading is typically measured closer to the pins.
Why Ball Speed Matters
Ball speed directly affects pin carry, entry angle, and hook potential. A ball thrown too slowly deflects when it hits the pins, losing energy and leaving corner pins standing. A ball thrown too fast drives straight through the pocket without enough deflection to carry the corners. The ideal speed creates the right balance — enough energy to carry all 10 pins while allowing your ball to enter the pocket at the optimal angle (around 6 degrees). Ball speed and rev rate together determine how your ball reacts on the lane.
How to Increase Ball Speed
The most effective way to increase speed is a longer, more fluid backswing. Let gravity do the work — a higher backswing naturally produces more speed without muscling the ball. Faster footwork during your approach also adds momentum. Focus on timing: your slide foot and the ball should arrive at the foul line simultaneously. Stronger legs and core help transfer more energy into the ball. If your ball feels heavy, consider dropping a pound — a lighter ball you can throw with better form will often out-perform a heavier ball thrown with compromised mechanics.
How to Decrease Ball Speed
Sometimes slowing down improves accuracy and pin carry — especially on dry lanes or when you need more hook. Shorten your backswing to reduce speed naturally. Slow your approach tempo and take smaller steps. Focus on a smooth, controlled release rather than powering through the ball. Reducing speed by 1-2 mph can dramatically change how your ball reacts on the backend, giving you more control over where it enters the pocket.
Optimal Ball Speed for Different Lane Conditions
Lane conditions should influence your target speed. On dry lanes (less oil), the ball hooks more — throw slightly slower to avoid over-hooking, or increase speed to keep the ball in the pocket. On oily lanes (heavy oil pattern), the ball skids farther before hooking — you may need to slow down to give the ball more time to read the lane, or use a more aggressive ball. Sport patterns require precise speed control — the margin for error is smaller, and a 1 mph change can mean the difference between a strike and a split. Adjust your speed by 1-2 mph at a time rather than making dramatic changes.
Ball Speed Questions
How fast does the average bowler throw a bowling ball?
The average recreational bowler throws between 14 and 17 mph. Most house bowlers fall in the 15-16 mph range. Professional bowlers typically throw between 20 and 23 mph, with some power players exceeding 24 mph.
How do I measure my bowling ball speed?
Use a stopwatch (or your phone's timer) to measure the time from when you release the ball at the foul line to when it hits the pins. The standard distance is 60 feet. Enter your time into the calculator above to get your speed. Many bowling alleys also display ball speed on their scoring monitors.
What is the ideal bowling ball speed?
Most coaches recommend 16-18 mph at the pins for optimal pin carry. Too slow (under 14 mph) and the ball deflects off the pins without carrying. Too fast (over 21 mph) and the ball may drive through the pins without enough deflection for a strike. The ideal speed depends on your style, rev rate, and lane conditions.
Does ball speed affect hook?
Yes, ball speed and hook are directly related. A slower ball has more time to hook on the backend, creating a wider arc. A faster ball has less time to react to the lane surface, resulting in a straighter path. Matching your speed to your rev rate is key — high revs with low speed causes over-hook, while low revs with high speed results in a flat ball with poor entry angle.
How can I increase my bowling ball speed?
To increase ball speed: (1) extend your backswing higher while staying balanced, (2) increase your footwork tempo during the approach, (3) improve your timing so the ball and slide foot arrive together, (4) use a lighter ball if your current ball is too heavy, and (5) strengthen your legs and core for a more powerful push-off.
Does the bowling alley speed display match actual speed?
Most bowling alley speed displays show the ball speed near the pins, not at the release point. A ball typically loses 2-3 mph between release and pin impact due to friction. If the monitor shows 17 mph, your release speed was approximately 19-20 mph. Our calculator measures the average speed over the full 60-foot distance.
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