Sourced from the Ontario Universities’ Application Centre’s (OUAC) official undergraduate grade conversion table — the same table OMSAS uses to convert every applicant’s transcript to a 4.0 GPA. Confirm which OMSAS scale applies to your school before you calculate using our OMSAS GPA Calculator.
Table of Contents
Quick answer
OMSAS doesn’t apply one universal percentage-to-GPA table — it uses nine different official conversion scales, and which one applies to you depends on which university issued your transcript. That means the same raw grade can convert to a different OMSAS GPA depending on where you earned it: an 84% at the University of Toronto (Scale 3) converts to 3.70, while the same 84% at the Royal Military College of Canada (Scale 4) converts to 3.90. If you’ve ever calculated your OMSAS GPA using a generic percentage-to-4.0 chart instead of your specific school’s scale, there’s a real chance the number you got isn’t accurate.
Which OMSAS scale does your university use?
This is drawn directly from OUAC’s published table. Where a school is listed under two scales, OMSAS applies whichever grade type (percentage or letter) actually appears on that school’s transcript.
| University | OMSAS Scale |
|---|---|
| Acadia | 7 |
| Alberta | 7 |
| Algoma | 3 |
| Athabasca | 7 |
| Bishop’s | 3 |
| Brandon | 7 |
| Brock | 3 |
| Calgary | 7 |
| Cape Breton | 3 |
| Capilano | 7 |
| Carleton | 7 |
| Concordia | 7 |
| Dalhousie | 3, 7 |
| Guelph | 3 |
| Lakehead | 3 |
| Laurentian | 7 |
| Laval | 7 |
| Lethbridge | 7 |
| Manitoba | 9 |
| McGill | 8 |
| McMaster | 7 |
| Memorial | 6 |
| Moncton | 7 |
| Montreal | 7 |
| Mt. Allison | 7 |
| Mt. Royal | 7 |
| Mt. St. Vincent | 7 |
| New Brunswick | 7 |
| Nipissing | 3 |
| OCAD | 3 |
| Ontario Tech | 7 |
| Ottawa | 7 |
| Prince Edward Island | 3 |
| Quebec | 7 |
| Queen’s | 3, 7 |
| Quest | 8 |
| Regina | 3 |
| RMC | 4, 7 |
| Royal Roads | 7 |
| Saskatchewan | 3 |
| Sherbrooke | 7 |
| Simon Fraser | 7 |
| St. Francis Xavier | 3 |
| St. Mary’s | 7 |
| St. Thomas | 7 |
| Ste-Anne | 7 |
| Thompson Rivers | 7 |
| Toronto | 3, 7 |
| Toronto Metropolitan | 7 |
| Trent | 3 |
| Trinity Western | 7 |
| UBC | 7 |
| UNBC | 7 |
| Victoria | 3, 7 |
| Waterloo | 3, 7 |
| Western | 3 |
| Wilfrid Laurier | 7 |
| Windsor | 3, 7 |
| Winnipeg | 7 |
| York | 9 |
Don’t see your school, or applying from outside Canada? OUAC’s official grade conversion table is the definitive source and gets updated directly by OUAC — worth checking there if a scale ever looks off, since this list can shift as schools update their grading systems.
The full conversion table, scale by scale
Each column shows what that scale’s grade range converts to on OMSAS’s 4.0 scale. Match your university from the table above to the right column here.
| OMSAS GPA | Scale 3 (%) | Scale 4 (%) | Scale 6 (%) | Scale 7 (letter) | Scale 8 (letter) | Scale 9 (letter) |
|---|---|---|---|---|---|---|
| 4.00 | 90–100 | 93–100 | 94–100 | A+ | A | A+ |
| 3.90 | 85–89 | 84–92 | 85–93 | A | — | — |
| 3.80 | — | — | — | — | — | A |
| 3.70 | 80–84 | 75–83 | 80–84 | A− | A− | — |
| 3.30 | 77–79 | 72–74 | 75–79 | B+ | B+ | B+ |
| 3.00 | 73–76 | 69–71 | 70–74 | B | B | B |
| 2.70 | 70–72 | 66–68 | 65–69 | B− | B− | — |
| 2.30 | 67–69 | 64–65 | 60–64 | C+ | C+ | C+ |
| 2.00 | 63–66 | 62–63 | 55–59 | C | C | C |
| 1.70 | 60–62 | 60–61 | — | C− | C− | — |
| 1.30 | 57–59 | 56–59 | — | D+ | D+ | D+ |
| 1.00 | 53–56 | 53–55 | 50–54 | D | D | D |
| 0.70 | 50–52 | 50–52 | — | D− | D− | — |
| 0.00 | ≤49 | ≤49 | ≤49 | E/F | E/F | E/F |
Scales 1, 2, and 5 also appear in OUAC’s published table but aren’t currently listed against any active Canadian university in their guide — likely legacy scales retained for older transcripts. If you’re not sure which scale applies to you, check OUAC’s official table directly or ask your registrar which grading scale is on your transcript.
How OMSAS actually calculates your cumulative GPA
Beyond picking the right scale, a few methodology rules trip people up:
Repeated courses count twice. If you retook a course and both grades appear on your official transcript, OMSAS includes both the original and the repeat grade in your cumulative GPA — it does not drop or replace the first attempt, even if your university’s own policy does.
Failed and incomplete courses count too. Failed, incomplete, and supplementary courses are all included in your cumulative GPA calculation, along with any courses taken beyond your degree requirements.
Grades are weighted by course length. Full-year courses count double, half-year courses count once, three-quarter courses count 1.5x, and lab courses typically count 0.5x — so a strong grade in a full-year course moves your GPA more than the same grade in a half-year course.
Only Canadian and American undergraduate courses count. OMSAS excludes graduate courses, college-level courses (even with transfer credit), Pass/Credit-graded courses, AP/IB credit, and international transcripts from other countries.
Frequently
Asked Questions
What is the OMSAS GPA scale?
It’s not a single scale — OMSAS converts grades to a 4.0 GPA using one of nine official conversion tables (see above), and which one applies depends on which university issued your transcript.
How is OMSAS GPA calculated?
OMSAS converts every eligible undergraduate grade using your school’s scale, weights each course by its length (full-year, half-year, etc.), then divides the total weighted converted grade points by the total course weight to get your cumulative GPA.
Does OMSAS use the same GPA scale for every university?
No. Different Canadian universities are mapped to different OUAC conversion scales — see the table above for your specific school.
Does OMSAS drop my lowest grade or replace a repeated course?
No. If you repeated a course and both attempts appear on your transcript, OMSAS includes both grades in your cumulative GPA rather than replacing the original with the retake.
What courses count toward my OMSAS GPA?
Every Canadian or American undergraduate credit course on your transcript, including failed, incomplete, and supplementary courses, and courses beyond your degree requirements. Graduate courses, college courses, Pass/Credit courses, and AP/IB credit are excluded.
How do I convert my percentage to an OMSAS GPA without doing the math by hand?
Use AcceptedTogether’s OMSAS GPA calculator — just confirm which scale applies to your school using the table above first, since the calculator’s default conversion won’t be accurate for every university otherwise.
Want a second set of eyes on your OMSAS GPA before you apply? AcceptedTogether’s advisors work with applicants across Canadian medical school applications and can help you double-check your numbers before submission.
