G.P.A calculation.

<p>I learn in Polish system, and I do not know how to compare my grades average and GPA.</p>

<p>Assuming that my school accepts about 8% of applicants, and I took the most demanding course in my school [it is not available, actually. I organised it for myself . How competetive is GPA a bit above 3.8? </p>

<p>And what's if we have a grade that does not exists in US [6 - for olympiades and additional performance]?</p>

<p>I see all the time students with 4,0; 3,96; 3,94 etc. and 3,8 looks poorely.</p>