GPA confusion

[graciegiraffe07]

Does anybody else's school have a different GPA depending on your number grade? Like an A is a 4.0, an A- is a 3.67, a B+ is a 3.33, a B is a 3.0 a B- is a 2.67, etc.?

I just finished my freshman year. Before the spring semester began this year, I had an overall GPA of 3.4 out of 4.0 (for 6 credits, including fall grades and transfer grades). My semester GPA for the spring turned out to be a 3.6 out of 4.0 (for 4.25 credits), but my overall GPA dropped to a 3.38!

I'm not asking anybody to do any elaborate calculations or anything, but if your school calculates GPAs the same way as mine does, does this sound normal to you? I am going to talk to someone in records about it, but first I wanted to make sure I'm not just ignorant.

Thanks!