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How long should a 13 year old's penis be?
3-4.5 inches, Mine at the beginning f 13 was 4.5 and middle-end was 5-5.5 Im 2 months into 14 now and 6 inches so dont worry about it you're not done growing I dont think...lol so im sure you will have a good 1.5-2.5 inches on the way. Hope this answer helped-Ethan
its not done growing yet...so its hard to tell, but 5-6 in. is the average on fully grown
don't ask...I had my little brother google it...anyway its 2-7 inches.
It can be 5 - 9 inches on full erection.
This was the range i was at