it will not stop growing until at least 20 or 21.. it depends a lot on when your growth plates close,,, but hell their just opening up,,,, give it time
boy’s penis grows little from the fourth year of life until puberty. After the penile growth of early infancy the average childhood penile length is about 7 cm. The prepubertal genitalia are described as stage 1. Within months after growth of the testes begins, rising levels of testosterone promote growth of the penis and scrotum. This earliest discernible beginning of pubertal growth of the genitalia is referred to as stage 2.[7] The penis continues to grow until about 18 years of age, reaching an average stretched adult size of about 13 cm.[
July 3, 2009 | 
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Penis size really depends on your genetic makeup. A penis should grow as you grow, but during puberty you should expect some growth spurt.
give it time u have until 21
it will not stop growing until at least 20 or 21.. it depends a lot on when your growth plates close,,, but hell their just opening up,,,, give it time
if ur 13 it’s not gonna grow alot more maybe 1 or 2 inches more if u lucky
boy’s penis grows little from the fourth year of life until puberty. After the penile growth of early infancy the average childhood penile length is about 7 cm. The prepubertal genitalia are described as stage 1. Within months after growth of the testes begins, rising levels of testosterone promote growth of the penis and scrotum. This earliest discernible beginning of pubertal growth of the genitalia is referred to as stage 2.[7] The penis continues to grow until about 18 years of age, reaching an average stretched adult size of about 13 cm.[