It'd be a nice thing if there had been one equation to help every one of us choose what the ideal baseball bat would be. A formula that takes into account the basic stats, height, age, ability level and strength. The power in my grip, for example, is way better than some and worse than others.
Youth baseball bat sizing can be confusing if you don't go into a sports store with some simple tips on choosing the right baseball bat size. Use the tips here to help you find the right bat for your young player.