I am about 13 (5'1) and I am wondering if I can get a good estimate about my final adult height. My mom is 6 ft, my dad is 5'10, and my older sister is 5'5. My tanner stage is 4.3. I have tried looking up formulas to figure out how tall I'll be and they all end up close to 5'8. But on another thing it said I could be 5'1-5'3. I've heard that youngest siblings tend to be shorter than their older siblings but I'm not quite sure if that's true. The last time I grew was about 3 inches last year.