Grading System in Iran
Grading scales:
Most Common
Passing Grade 10| Grade | Scale | US Grade |
|---|---|---|
| A+ | 18.00 - 20.00 | A+ |
| A | 17.00 - 17.99 | A |
| B | 14.00 - 16.99 | B |
| C | 12.00 - 13.99 | C |
| D | 10.00 - 11.99 | D |
| F | 0.00 - 9.99 | F |
International Baccalaureate Diploma
| Grade | Scale | Grade Description | US Grade |
|---|---|---|---|
| 6.00 - 7.00 | A | ||
| 5.00 - 5.99 | B | ||
| 4.00 - 4.99 | C | ||
| 3.00 - 3.99 | D | ||
| 1.00 - 2.99 | F | ||
| P | Passing | S | |
| 0.00 - 0.99 | F |
Most Common II
Passing Grade 12| Grade | Scale | US Grade |
|---|---|---|
| A+ | 18.00 - 20.00 | A+ |
| A | 17.00 - 17.99 | A |
| B | 14.00 - 16.99 | B |
| C | 12.00 - 13.99 | C |
| F | 0.00 - 11.99 | F |
Tehran International School
| Scale | US Grade |
|---|---|
| 93.00 - 100.00 | A |
| 90.00 - 92.00 | A- |
| 87.00 - 89.00 | B+ |
| 83.00 - 86.00 | B |
| 80.00 - 82.00 | B- |
| 77.00 - 79.00 | C+ |
| 73.00 - 76.00 | C |
| 70.00 - 72.00 | C- |
| 67.00 - 69.00 | D+ |
| 60.00 - 66.00 | D |
| 50.00 - 59.00 | D- |
| 0.00 - 49.00 | F |