The General Rule
The most common guideline is to use a ball that's roughly 10% of your body weight, up to a maximum of 16 pounds (the heaviest ball allowed). But this is just a starting point — comfort and control matter more than following a formula.
A ball that's too heavy will cause you to muscle it, lose accuracy, and tire out fast. A ball that's too light won't have enough energy to drive through the pins, leading to more leaves and splits.
The right ball weight feels comfortable to swing smoothly for an entire 3-game series without your arm getting fatigued.
Weight Guide by Age and Strength
Here's a general starting point:
- Kids (6-10 years)
- 6-10 lbs
- Teens (11-15 years)
- 10-13 lbs
- Adults (lighter build)
- 12-14 lbs
- Adults (average build)
- 14-15 lbs
- Adults (strong/experienced)
- 15-16 lbs
These are suggestions, not rules. Many accomplished adult bowlers use 14-pound balls and score just as well as those throwing 16-pounders. The trend in modern bowling is actually shifting slightly lighter for better control and rev rate.
House Balls vs Your Own Ball
House balls (the ones at the centre) have a conventional grip — your fingers go in up to the second knuckle. They come in fixed weights and standard hole sizes, so the fit is rarely perfect.
When you buy your own ball, a pro shop drills it specifically for your hand. You'll typically use a fingertip grip (fingers inserted to the first knuckle only), which gives you far more control and the ability to create spin.
Signs Your Ball Is Too Heavy
Watch for these warning signs:
- Your arm feels sore or fatigued after 1-2 games
- You're dropping the ball early (landing it before your intended target)
- Your swing feels labored instead of smooth and pendulum-like
- Your accuracy drops significantly in games 2 and 3
- You're gripping the ball tightly to keep control
If any of these sound familiar, try going down one pound. You'll likely find your control and consistency improve immediately.
Signs Your Ball Is Too Light
A too-light ball has its own problems:
- Pins are "deflecting" — your ball bounces off pins instead of driving through them
- You're leaving a lot of corner pins (7 pin and 10 pin)
- You feel like you're throwing it too fast or with too much effort
- You're getting "weak" hits that scatter pins but don't clear the deck
Going up one pound can add the pin-carrying power you're missing. But only do this if you can maintain control over a full session.
The Bottom Line
Choose the heaviest ball you can throw comfortably and accurately for three full games. Control and consistency beat raw power every time. If you're between two weights, start with the lighter one.
When you're ready to invest in your own equipment, visit a local pro shop. They'll measure your hand, talk about your game, and drill a ball that fits perfectly. It's the single biggest equipment upgrade a beginner can make.