The University of Otago uses the following scale to convert numerical marks into grades:
| Mark | Grade |
|---|---|
| 90–100 | A+ |
| 85–89 | A |
| 80–84 | A- |
| 75–79 | B+ |
| 70–74 | B |
| 65–69 | B- |
| 60–64 | C+ |
| 55–59 | C |
| 50–54 | C- |
| 40–49 | Fail D |
| Below 40 | Fail E |
The University of Otago grading scale is defined under clause 9.1 of the Examinations and Assessment Regulations 2014. A key is included on the reverse side of all official academic transcripts.