How the GPA is computed
Each course row has a letter grade and a credit value. The calculator looks up the grade points for each letter, multiplies by credits to get quality points, adds up all quality points, and divides by total credits. The result is shown to two decimals.
GPA = Σ (grade points × credits) ÷ Σ credits| Grade | Points | Grade | Points |
|---|---|---|---|
| A+ / A | 4.0 | C+ | 2.3 |
| A− | 3.7 | C | 2.0 |
| B+ | 3.3 | C− | 1.7 |
| B | 3.0 | D+ | 1.3 |
| B− | 2.7 | D | 1.0 |
| D− | 0.7 | ||
| F | 0.0 | ||
Worked example
Take A in a 3-credit course, B+ in a 4-credit course and A− in a 3-credit course. Quality points are 4.0 × 3 = 12.0, 3.3 × 4 = 13.2 and 3.7 × 3 = 11.1, which total 36.3. Dividing by 10 credits gives a GPA of 3.63. Adding a 3-credit C and a 4-credit B changes it to 54.3 ÷ 17 credits, about 3.19, which shows how heavier courses pull the average harder than light ones.
What this calculator does and does not cover
- Scale. It is the common US 4.0 scale. There is no A+ above 4.0, and D− is included at 0.7. Your school may differ, so check its published table.
- Unweighted. Honours, AP and IB courses that add an extra point at some schools are not modelled. Enter the standard value if you want the unweighted figure.
- Cumulative GPA. To include earlier terms, add one row per previous term with its overall credits and an equivalent grade, or calculate each course separately. Mixed-scale transcripts are not combined.
- Pass/fail courses. These normally do not count towards GPA, so leave them out, as zero-credit rows have no effect.
- Repeated courses. Policies vary on whether the old or new grade counts, so apply your school's rule when entering rows.
If you are still in the middle of a course, the grade calculator converts weighted assignments into a course percentage and shows what you need on the final. Students on a 10-point system can use the percentage to CGPA calculator.