OMSAS GPA Calculator
Convert your transcript to the OMSAS 4.0 scale using the official conversion table for your university — not a generic percentage chart.
| Course | Length | Grade | OMSAS | Remove |
|---|---|---|---|---|
| — | ||||
| — | ||||
| — |
What counts, and what does not
OMSAS is more inclusive than most university GPA policies, and the differences usually work against applicants who assume otherwise:
- Repeated courses count twice. If both attempts are on your transcript, both go into the GPA. Retaking does not replace the original.
- Failures count, along with incomplete and supplementary courses and anything extra to your degree requirements.
- Pass/Credit grades are excluded — but a Fail is included as a failure.
- College, graduate, continuing-education and challenge-for-credit courses are excluded, as are IB and AP credit and MD programs.
- Transcripts from outside Canada and the US are processed as non-convertible, so OMSAS calculates no GPA for them.
Course weights
Courses are weighted by length of study, not by credit hours:
| Course | Weight |
|---|---|
| Full-year course | 2 |
| Three-quarter course | 1.5 |
| Half-year / semester course | 1 |
| Lab course | 0.5 |
The cumulative average is the total of converted grades divided by the total of course weights. OUAC is explicit that it is not an average of the averages, so a strong semester of half courses does not offset a weak full-year course as much as a simple mean would suggest.
The official OMSAS conversion table
Every scale, exactly as OUAC publishes it. Scales 1 and 2 are numeric, 3 to 6 are percentage bands and 7 to 9 are letter grades. Blank cells mean that scale has no grade at that value — Scale 8 has no A+, and Scale 9 has no minus grades at all.
| OMSAS value | Scale 1 | Scale 2 | Scale 3 | Scale 4 | Scale 5 | Scale 6 | Scale 7 | Scale 8 | Scale 9 |
|---|---|---|---|---|---|---|---|---|---|
| 4.00 | 9 | 8 | 90–100 | 93–100 | 94–100 | 94–100 | A+ | A | A+ |
| 3.90 | 85–89 | 84–92 | 87–93 | 85–93 | A | ||||
| 3.80 | A | ||||||||
| 3.70 | 8 | 7 | 80–84 | 75–83 | 80–86 | 80–84 | A- | A- | |
| 3.30 | 7 | 6 | 77–79 | 72–74 | 75–79 | 75–79 | B+ | B+ | B+ |
| 3.00 | 73–76 | 69–71 | 70–74 | 70–74 | B | B | B | ||
| 2.70 | 6 | 5 | 70–72 | 66–68 | 65–69 | 65–69 | B- | B- | |
| 2.30 | 5 | 4 | 67–69 | 64–65 | 60–64 | 60–64 | C+ | C+ | C+ |
| 2.00 | 63–66 | 62–63 | 55–59 | 55–59 | C | C | C | ||
| 1.70 | 4 | 3 | 60–62 | 60–61 | 50–54 | C- | C- | ||
| 1.30 | 2 | 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 | 3 | 1 | ≤ 49 | ≤ 49 | ≤ 49 | ≤ 49 | E/F | E/F | E/F |
Which scale does each university use?
| Institution | Scale |
|---|---|
| Acadia | Scale 7 |
| Alberta | Scale 7 |
| Algoma | Scale 3 |
| Athabasca | Scale 7 |
| Bishop’s | Scale 3 |
| Brandon | Scale 7 |
| Brock | Scale 3 |
| Calgary | Scale 7 |
| Cape Breton | Scale 3 |
| Capilano | Scale 7 |
| Carleton | Scale 7 |
| Concordia | Scale 7 |
| Dalhousie | Scale 3, Scale 7 |
| Guelph | Scale 3 |
| Lakehead | Scale 3 |
| Laurentian | Scale 7 |
| Laval | Scale 7 |
| Lethbridge | Scale 7 |
| Manitoba | Scale 9 |
| McGill | Scale 8 |
| McMaster | Scale 7 |
| Memorial | Scale 6 |
| Moncton | Scale 7 |
| Montreal | Scale 7 |
| Mt. Allison | Scale 7 |
| Mt. Royal | Scale 7 |
| Mt. St. Vincent | Scale 7 |
| New Brunswick | Scale 7 |
| Nipissing | Scale 3 |
| OCAD | Scale 3 |
| Ontario Tech | Scale 7 |
| Ottawa | Scale 7 |
| Prince Edward Island | Scale 3 |
| Quebec | Scale 7 |
| Queen’s | Scale 3, Scale 7 |
| Quest | Scale 8 |
| Regina | Scale 3 |
| RMC | Scale 4, Scale 7 |
| Royal Roads | Scale 7 |
| Saskatchewan | Scale 3 |
| Sherbrooke | Scale 7 |
| Simon Fraser | Scale 7 |
| St. Francis Xavier | Scale 3 |
| St. Mary’s | Scale 7 |
| St. Thomas | Scale 7 |
| Ste-Anne | Scale 7 |
| Thompson Rivers | Scale 7 |
| Toronto | Scale 3, Scale 7 |
| Toronto Met | Scale 7 |
| Trent | Scale 3 |
| Trinity Western | Scale 7 |
| UBC | Scale 7 |
| UNBC | Scale 7 |
| Victoria | Scale 3, Scale 7 |
| Waterloo | Scale 3, Scale 7 |
| Western | Scale 3 |
| Wilfrid Laurier | Scale 7 |
| Windsor | Scale 3, Scale 7 |
| Winnipeg | Scale 7 |
| York | Scale 9 |
Where two scales are listed, your transcript can carry either form. OMSAS uses the percentage grade when both appear — except at the University of British Columbia, where it uses the letter grade.
After the GPA
The GPA is one input among several. Each Ontario medical school applies its own criteria on top: some weight your most recent years, some drop your lowest, and all of them read the GPA alongside your MCAT, CASPer, references and experience. Your official OMSAS calculation appears in the Document Tracking section of your application from November, and you are responsible for reporting corrections by the stated deadline.
Studying elsewhere in Canada? The Canada grade conversion page covers percentage-to-GPA for general use, and the U of T, McMaster and York calculators use each school's own transcript scale, which is a different number from the OMSAS one.
Conversion values transcribed from the OUAC — Undergraduate Grade Conversion Table and rules from OUAC — OMSAS GPA Calculations, verified 2026-09-20. OUAC revises these — check the source before relying on a number for an application.
Frequently asked questions
How is the OMSAS GPA calculated?
OMSAS converts every course grade to its 4.0-scale value using the conversion scale assigned to your university, multiplies each by the course weight, adds them up and divides by the total weight. It is a weighted average of converted grades — OUAC states explicitly that it is not an average of averages.
What is the OMSAS conversion scale for my university?
There are nine, and OUAC assigns one (sometimes two) to each institution. Toronto, Western and Guelph use Scale 3; McMaster, Ottawa, UBC and Alberta use Scale 7; McGill uses Scale 8; York and Manitoba use Scale 9. Select your university in the calculator above and the right table is applied.
Does an 84% convert the same everywhere?
No, and this is the single biggest reason a generic calculator gets an OMSAS GPA wrong. An 84% is 3.70 on Scale 3 (Toronto) and 3.90 on Scale 4 (RMC). Same percentage, different converted value, because the scales are assigned per institution.
How much is a full-year course worth?
A full-year course carries a weight of 2, a half-year or semester course 1, a three-quarter course 1.5 and a lab course 0.5.
Do repeated courses count in the OMSAS GPA?
Yes. If both the original and the repeated grade appear on your official transcript, OMSAS includes both. Retaking a course does not replace the first attempt the way it may for your university GPA.
Do failed courses count?
Yes. All courses and grades are included, failed, incomplete and supplementary ones as well as courses extra to your degree requirements. A course graded Pass or Credit is excluded, but one graded Fail is included as a failure.
What is excluded from the OMSAS GPA?
College courses even where transfer credit was granted, graduate courses, undergraduate courses taken as part of a graduate program, continuing education, challenge-for-credit courses, consecutive B.Ed. programs, naturopathic and chiropractic medicine, MD programs, and IB or AP credit. Transcripts from outside Canada and the US are processed as non-convertible, so no GPA is calculated for them.
My transcript shows both a percentage and a letter grade — which does OMSAS use?
The percentage, in every case except the University of British Columbia, where OMSAS uses the letter grade. OUAC also warns against trying to reconcile alpha grades to a percentage scale yourself.
Is this the GPA the medical schools will see?
It is an estimate of it. OMSAS recalculates from your official transcript, and each medical school may then apply its own criteria — some weight recent years, some drop your lowest year. Your own OMSAS calculation appears in the Document Tracking section of your application from November.