There’s no way to know what length or size your penis will grow to until you reach the end of puberty. However, there’s no need to worry about the size of your penis at any stage, because all sizes are normal.
At some point during puberty, penises start to get bigger and longer. This happens at different ages for different people. It can also take several years for your penis to grow to its final size.
It’s normal to have questions about your body and the ways that it may change as you get older. Talking with adults you trust, like a parent, counselor, or older brother or sister is a great way to get answers to your questions and the support you need to help you feel better.