Add your courses with grades and credit hours to calculate your weighted GPA.
| Course | Grade | Credits |
|---|
GPA (Grade Point Average) is the sum of each course's grade points multiplied by its credit hours, divided by the total credit hours. A 4.0 scale is standard in most US universities: A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, and so on. The weighted average accounts for the fact that some courses carry more credits than others.
To calculate GPA, multiply each course's grade points by its credit hours, add the results together, then divide by the total credit hours. Example: A (4.0) in a 3-credit course, B+ (3.3) in another 3-credit course, and A- (3.7) in a 4-credit course give a GPA of (4.0×3 + 3.3×3 + 3.7×4) ÷ 10 = 3.67.
A equals 4.0 grade points and B equals 3.0 on the standard 4.0 scale; A- is 3.7 and B+ is 3.3, in between.
With A in a 3-credit course, B+ in another 3-credit course, and A- in a 4-credit course, the weighted GPA is (4.0×3 + 3.3×3 + 3.7×4) ÷ 10 = 3.67.
A 3.5 is generally a strong GPA, roughly between A- and B+, but what counts as "good" depends on your university and program, so compare it to your school's own grading distribution.
All A's average to a 4.0 GPA regardless of credit hours, since every course contributes the same 4.0 grade points per credit.
C is worth 2.0 grade points, so a straight-C average gives a 2.0 GPA — the minimum many programs require for good academic standing.
B- is worth 2.7 grade points versus 3.0 for a straight B, a 0.3-point difference for every credit hour of that course.
Yes. A 4-credit course contributes more to the weighted total than a 3-credit course, so a low grade in it pulls the GPA down further.
B×3, C+×3, and B-×3 credits give (3.0×3 + 2.3×3 + 2.7×3) ÷ 9 = 2.67.
| Courses (grade × credits) | Total credits | GPA |
|---|---|---|
| A×3, B+×3, A-×4 | 10 | 3.67 |
| A×12 | 12 | 4.00 |
| B×3, C+×3, B-×3 | 9 | 2.67 |
| A×4, B×2, C×3 | 9 | 3.11 |
| A-×3, B+×3, B×3, C+×3 | 12 | 3.07 |
A course worth 4 credits represents more work and more of your semester than a course worth 1 credit, so it should influence the average more. Weighting by credit hours reflects that difference; a simple unweighted average would treat every course as equally important regardless of size.
Weighted GPA (shown here) accounts for credit hours per course. Some high schools also use a separate 'weighted GPA' that adds extra points for honors or AP courses — that is a different concept from credit weighting and not what this calculator computes.
Plus and minus modifiers shift the grade points by roughly 0.3 up or down from the base letter grade (B+ = 3.3, B- = 2.7 versus B = 3.0). Not all schools use plus/minus grading, so check your institution's scale before comparing GPAs across schools.
Yes. Add every course from every semester as separate rows with its own grade and credits; the calculator sums quality points and credits across all rows to compute one cumulative GPA.
This calculator uses a standard 4.0 scale with plus/minus increments; some schools use different scales (5.0, percentage-based, or no plus/minus). Confirm your institution's exact grading scale before submitting a GPA on official documents.
Last updated: 2026-08-17