Help I have a Height Question?

Question

i just turned 15 im 67inches and my sitting height is 42 inches oh and i weight 115lbs i know it varies but how many more inches would the average male grow

Answer 1

According to recent studies, the average white male in the US is 70 inches.  So, the answer to your question depends a lot on your ethnicity and genetic background.  On an international scale, human height ranges from 64-72 inches.  I'd say, your in the middle.  

However, being 15, you also have a lot of time to grow.  The human male doesn't stop development until 23 years old (although, the major growth is over by 18).  

As you develop, you will get taller and gain weight.  An ideal weight for someone your current height is 140 lbs.  Again, this will depend on diet and genetics.  If you grow to be closer to 70 inches, a healthy weight would be about 150.