Five classes: A, A, A, B and C (equal credits)
- Details
- 1 credits × A · 1 credits × A · 1 credits × A · 1 credits × B · 1 credits × C
- Result
- GPA 3.40
Enter the details (current step)
Current GPA (optional)
When these are entered, the cumulative GPA including these classes is also shown.
Result
Please complete the details. The result will appear here.
How it is calculated
- Grade points of a class = credits × grade point. GPA = total grade points ÷ total credits.
- For marks out of 100, the weighted average marks = total of (credits × marks) ÷ total credits.
- Cumulative GPA = (current GPA × credits completed + total grade points of these classes) ÷ (credits completed + credits of these classes).
- The GPA is rounded to two decimal places.
- The A–F scale is taken from the College Board, which notes that schools may use different cut-offs. Weighted GPA for AP and honours classes is not included because no official source gives the extra points.
- All calculations are done in your browser. The details you enter are not sent to any server.
Grades and grade points
Letter grades A–F
| Grade | Grade point |
|---|---|
| A | 4.0 |
| B | 3.0 |
| C | 2.0 |
| D | 1.0 |
| E/F | 0.0 |
Letter grades A+ to F
| Grade | Grade point |
|---|---|
| A+ | 4.3 |
| A | 4.0 |
| A- | 3.7 |
| B+ | 3.3 |
| B | 3.0 |
| B- | 2.7 |
| C+ | 2.3 |
| C | 2.0 |
| C- | 1.7 |
| F | 0.0 |
Marks out of 100 (Peking University formula)
| Marks | Grade point |
|---|---|
| 100 | 4 |
| 95 | 3.9531 |
| 90 | 3.8125 |
| 85 | 3.5781 |
| 80 | 3.25 |
| 75 | 2.8281 |
| 70 | 2.3125 |
| 65 | 1.7031 |
| 60 | 1 |
Grade point = 4 − 3 × (100 − marks)² ÷ 1600 for 60 to 100 marks, and 0 below 60 marks.
Other institutions use other grade cut-offs and plus or minus grades. Please follow your institution's rules and select “Enter grade points”.
Worked examples
Weighted by credits: A (3), B (4), C (2), A (1)
- Details
- 3 credits × A · 4 credits × B · 2 credits × C · 1 credits × A
- Result
- GPA 3.20
4.3 scale: A+ (3 credits), A- (2), B (3)
- Details
- 3 credits × A+ · 2 credits × A- · 3 credits × B
- Result
- GPA 3.66
Marks out of 100: 90 (3 credits) and 75 (2 credits)
- Details
- 3 credits × 90 · 2 credits × 75
- Result
- GPA 3.42 · Weighted average marks 84
Grade points on a 5.0 scale: 4.5, 3.8 and 5.0
- Details
- 2 credits × 4.5 · 3 credits × 3.8 · 1 credits × 5
- Result
- GPA 4.23
Cumulative: current GPA 3.2 (60 credits), plus A and B (3 credits each)
- Details
- 3 credits × A · 3 credits × B
- Result
- GPA 3.50 · Cumulative GPA 3.23
Official sources
Applies to: College Board guidance in force; National Taiwan University grade point table as amended in October 2025; Peking University formula in use from 2005.
- College Board (BigFuture): How to Calculate Your GPA on a 4.0 Scale
- National Taiwan University, Office of Academic Affairs: Regulations on Student Grading, Table 1: Grade definitions and grade points
- Peking University: Rules on course recognition and credit transfer for undergraduates studying abroad (2005)
Last reviewed on 31 October 2026.
The rules on this page have been checked against the official sources listed above. The result is for reference. The rules and assessment of the concerned authority shall prevail.