How do i know when my growth plates are closed?

[copiumconsumer]

I am 16M, 186cm (about 6,1). I can't tell if i've stopped growing or not, my stretch marks from growing so much when i was 13-14 got better and now worse. When do i know i finished growing or do i just keep coping? lmk

 

[copiumconsumer]

bump