Do you mean whole suit? Well, i didn't know that fomula when i started to build these. I just caculate my body and then edit the number, scale it to fit my body size. i don't think the fomula y said is suitable for everyone. The helmet for example, if your head is 25 cm tall, scale it to 27 or 28 cm, it'll be fine. Sometimes u have to export it to the obj file, import to 3d program to scale cuz the height, depth..vv don't match your size. I had to do that with many files: emile helmet, rookie helmet, reach torso...well, i'm not good at this, but if u need help, just pm me, i'll do my best