How to Calculate Grade Point Average
- Multiply the Grade Value by the Credit Value to calculate Quality Points
- Add the Quality Points to find Total Quality Points Earned.
- Add the Credits to find the Total Credits Attempted. Year-long classes are all one credit classes and half-year or semester classes are all 0.5 credits. The only exception is physical education classes which are 0.25 credits.
- Divide the Total Quality Points Earned by the Total Credits Attempted to find GPA.
Example of a Grade Point Average Calculation:
| Class | Grade | Grade Value | Credit Value | Quality Points |
| English | B | 3.000 | 1.0 | 3.000 |
| Math | A- | 3.670 | 1.0 | 3.670 |
| Science | B+ | 3.330 | 1.0 | 3.330 |
| U.S. History | C+ | 2.330 | 0.5 | 1.165 |
| P.E. | A | 4.000 | 0.25 | 1.000 |
| Band | A | 4.000 | 1.0 | 4.000 |
| Food for Fitness | B- | 2.670 | 0.5 | 1.335 |
| Total Quality Points | 17.500 | |||
| Total Credits | 5.250 | |||
| GPA | 3.333 |
Regular grading system at the high school:
| A = 93-100 = 4.000 | C = 73-76 = 2.000 |
| A- = 90-92 = 3.670 | C- = 70-72 = 1.670 |
| B+ = 87-89 = 3.330 | D+ = 67-69 = 1.330 |
| B = 83-86 = 3.000 | D = 63-66 = 1.000 |
| B- = 80-82 = 2.670 | D- = 60-62 = 0.670 |
| C+ = 77-79 = 2.330 | F = 59-Below = 0.000 |
Weighted grading scale and point values for AP courses:
| A = 93-100 = 5.000 | C = 73-76 = 3.000 |
| A- = 90-92 = 4.670 | C- = 70-72 = 2.670 |
| B+ = 87-89 = 4.330 | D+ = 67-69 = 2.330 |
| B = 83-86 = 4.000 | D = 63-66 = 2.000 |
| B- = 80-82 = 3.670 | D- = 60-62 = 1.670 |
| C+ = 77-79 = 3.330 | F = 59-Below >= 0.000 |