Hi' i'm 18 and 67 inches tall. my dad is 75 inches tall. can i grow taller than him??

Unlikely : By the age of 18 your growth plates are going to be closing pretty soon. This is the part of the bone that allows new bone to form and lengthen the bones. For most people this happens around 18-20. You are probably going to grow another two to three inches but you might not catch your dad!

Doubt it: Both parents contribute equally to the main genetic input for height.I suspect you mom is short.Expected final male height is the average of both parents + 2-3 inches.Height is dependent on open growth centers, but these usually close in males by 17-18. An x-ray of your wrist/hand could show if they are open.If they were more like a 14 yo you could grow several inches, but if closed or closing-not