Well let's do it mathematically. there is 120 inches in ten feet. 5'8''=68 inches then add ur 18'' of running vert 68+18=86 120-86=34'' Now that would give u a 52'' vertical. Highly unlikey but it is likely that you should hopefully grow to a good 6'1''. that's 5 more inches cuz ur only 15. that makes it 47'' it's been done before.

Let's 4get that math. I'm 6'3'' with a 26'' vert and can get my wrist on the rim evertime and dunk off an alley oop.

So finally I would say if you got to 6' or 6'1'' in the next yr. you would need about 10-12 more inches of vert to dunk and that is highly reasonable with proper training, nutrition, and desire. Hope that helped

Lol, you forgot to add this arms xD He would need a 47 inch vert to touch his head on the rim, thats what ur math says

yeah u right haha c that's how far my math can take me so whatever his arms are...let's guess that he'll need between a 28''-30'' vert just to dunk

Could someone tell me too please
My reach is 213 cm.

__________________
Age - 13
Height - 5.6
Vertical jump - 30"
Programs:
VJB Beginner Plyometrics - done
VJB Bodyweight Strenght - done

yeah hold on a minute and i can do it for u

k u say reach is 213 cm. in inches that's 83.8'' that's 6'9'' no way ur 6'9'' and not dunking i'm really confused so just tell me ur heigth in inches and ur heigth with ur hands in the air which i think is ur reach which means u have a 6'9'' reach. is this right

81'' 120''=a 10 ft. rim. 120''-81''=39''. so take ur current vert and minus it from 39'' and then u will get how many more inches u will need to dunk a basketball on a regulation ten ft. rim!!

My standing reach is 6.9 then. I mean if i but my hands in the air then my reach is 213 (6.9 ) .

__________________
Age - 13
Height - 5.6
Vertical jump - 30"
Programs:
VJB Beginner Plyometrics - done
VJB Bodyweight Strenght - done