No, not quite. A lot of European countries use numerical grades instead of alphabetical ones, and some don't have what is equivalent to a GPA system, e.g.
2 = F; 3 = D; 4 = C, 5 = B, 6 = A
Hmm I see.. usually we go by a percentage. 100% is the best you can get, and depending on where you're at the letter grades correspond with the percentage, such as my school uses this system:
A = 90%, B = 80%, C = 70%, D = 60%.
But it wasn't always that way, a few years ago it was all messed up like this:
A = 93.5%, B = 85%, C = 77.5 %, D = 70 %
Which made things much harder. Our GPA system is an odd one, if you have an A in every class, then you have a 4.0. But if you have a B in one class and an A in every other class, it'll be a 3.9. However, if you're failing one class but getting all A's in everything else, it could go down to a 3.5. But if you have a B in every class, it's also a 3.5.