Calculates GPA from course grades and credit hours.
The GPA calculator computes a weighted grade point average by multiplying each course grade by its credit hours, summing the products, and dividing by total credit hours.
Quality points per course = Grade points × Credit hours GPA = Σ(Quality points) / Σ(Credit hours) Common scale: A=4.0, A−=3.7, B+=3.3, B=3.0, B−=2.7, C+=2.3, C=2.0, D=1.0, F=0.0
Biology 3 credits B+ (3.3): 9.9 points. Maths 4 credits A (4.0): 16.0. History 3 credits C+ (2.3): 6.9. GPA = 32.8 / 10 = 3.28.
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