If my grades are B- B- C B- A- What's my gpa?

I give you a D for having to ask total strangers and not being able to figure simple math.

3.0

depends on the weight of each grade.

the A could be 1 credit hour and the C could be 4 credit hours.

I'd guess a 3.0

We can't give you GPA, because you have given us only letter grades.
However, if they are all equally weighted... and that's a big IF... your average would be a B-.

Need number grades to calculate this.