Grades
Weighted GPA from bonus points
Add each course's bonus to its grade points, sum the results, and divide by the number of courses. The worked set gives 21.5 / 5 = 4.3 against an unweighted 3.8.
The Formula
Weighted GPA = (gp1 + b1 + gp2 + b2 + ... + gpn + bn) / n
Add each course's bonus to its grade points, sum the results, and divide by the number of courses. The worked set gives 21.5 / 5 = 4.3 against an unweighted 3.8.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| gp | Grade points earned in a course | points | The plain 4.0-scale value before any bonus: 4.0 for an A, 3.3 for a B+, 3.7 for an A-. |
| b | Bonus points for course difficulty | points | 1.0 for an AP or IB course, 0.5 for an honours course, 0 for a regular course. |
| n | Number of courses in the term | courses | Equal credits let you divide by the count; 5 in the worked set. |
What Each Symbol Means
gppoints
Grade points earned in a course
The plain 4.0-scale value before any bonus: 4.0 for an A, 3.3 for a B+, 3.7 for an A-.
bpoints
Bonus points for course difficulty
1.0 for an AP or IB course, 0.5 for an honours course, 0 for a regular course.
ncourses
Number of courses in the term
Equal credits let you divide by the count; 5 in the worked set.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate a weighted 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 A Weighted GPA, filed under Education. Every number the guide produces comes from substituting into this one line.