How college GPA is calculated
Multiply each course's grade-point value by its credit hours, sum the products, then divide by the total credit hours attempted. The standard US college scale uses plus and minus modifiers: A=4.0, A-=3.7, B+=3.3, B=3.0, B-=2.7, and so on down to F=0.0.
Plus-minus quirks worth knowing
- A+ equals A at most schools. Most US colleges cap A+ at 4.0. Cornell, MIT, and Boston University use 4.3.
- Withdrawn courses (W) don't count.They appear on your transcript but don't enter the GPA math.
- Pass/Fail (P, NP) is excluded. Credit is awarded. The grade does not affect GPA.
Example
Three courses: a 3-credit Biology with an A (4.0), a 4-credit Calc with a B+ (3.3), a 3-credit Spanish with an A- (3.7).
(4.0 × 3) + (3.3 × 4) + (3.7 × 3) = 12 + 13.2 + 11.1 = 36.3
Total credits: 10. GPA: 36.3 / 10 = 3.63.
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