Grades
Credit-weighted GPA
Weight each course's grade points by its credits before averaging. With 41.3 quality points across 12 credits the result is 3.4416667, whereas the unweighted mean of the four grade points is 3.5.
The Formula
GPA = (gp1 x c1 + gp2 x c2 + gp3 x c3 + gp4 x c4) / (c1 + c2 + c3 + c4)
Weight each course's grade points by its credits before averaging. With 41.3 quality points across 12 credits the result is 3.4416667, whereas the unweighted mean of the four grade points is 3.5.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| gp | Grade points earned in course i | points | Taken from the official 4.0 scale table, not from the percentage mark. |
| ci | Credits carried by course i | credits | Credit hours, units or ECTS equivalents, used consistently across all courses. |
| GPA | Weighted grade point average | points | Always lies between the lowest and highest grade point in the set. |
What Each Symbol Means
gppoints
Grade points earned in course i
Taken from the official 4.0 scale table, not from the percentage mark.
cicredits
Credits carried by course i
Credit hours, units or ECTS equivalents, used consistently across all courses.
GPApoints
Weighted grade point average
Always lies between the lowest and highest grade point in the set.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate gpa page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate GPA, filed under Education. Every number the guide produces comes from substituting into this one line.