Updated November 3, 2026
OMSAS GPA calculator
OMSAS converts each grade to a value on its 4.0 scale with OUAC's conversion table, weights it by course length (full year 2, half year 1, three-quarter 1.5, lab 0.5) and divides total points by total weights. Each Ontario school then uses its own version: Toronto counts full-time years without your current one, Ottawa your most recent 3 full-time years, Western each of your 2 best years, and Queen's only the cumulative. Type your OUAC values below to see all seven. The example student has a 3.74 OMSAS GPA, 3.77 for Toronto and 3.81 for Western.
An invented student, three years in. Replace it with your courses. Type each grade's value from OUAC's conversion table (a number from 0 to 4), oldest year first. Leave out pass or credit courses.
OMSAS cumulative GPA
3.74
31 course weights.
| School | GPA | Minimum |
|---|---|---|
| McMasterEvery undergraduate course, all years treated equally, summer and supplementary included | 3.74 | 3.0Meets it |
| NOSM UniversityYour GPA on OUAC's 4.0 scale, scored equally with a context score for interviews | 3.74 | 3.0Meets it |
| OttawaYour most recent 3 full-time years with final grades, summer courses in them included | 3.74 | 3.5Meets it |
| Queen'sCumulative only: full-time, part-time, summer and supplemental courses | 3.74 | 3.0Meets it |
| TorontoFull-time years only, your current year left out, no weighting by year | 3.77 | 3.6Meets it |
| TMUYour OMSAS-calculated GPA, one factor in a holistic review | 3.74 | 3.5Meets it |
| WesternThe lower of your 2 best September to April years with at least 5 full courses | 3.81 | 3.70 each yearMeets it |
A 3.74 is one part of your file. Interviews decide the rest.
Start your free weekMethod from OUAC's OMSAS GPA calculations page. Grade values come from OUAC's Undergraduate Grade Conversion Table, which you read on OUAC's site. School rules from each school's page, read November 1, 2026. The example student is invented. Nothing you type leaves this page. Confetto is not affiliated with OUAC, OMSAS or any Ontario medical school.
How to use it
- Open OUAC's conversion table and find your university's scale. Some schools list two, one for percentages and one for letters.
- Read the OUAC value for each grade on your transcript and type it in, one course per row, with its length.
- Tick Summer for summer or intersession courses, and untick Full-time year for a part-time year. Mark the year you are in now as in progress.
- Leave out pass or credit courses, college courses and graduate courses. OMSAS leaves them out too. Enter both attempts of a repeated course.
How OMSAS weights your courses
OMSAS adds every converted grade times its course weight, then divides by the total weight. A full-year course counts 2, a half-year course 1, a three-quarter course 1.5 and a lab 0.5. So it is not the average of your yearly GPAs, and a full-year course moves your GPA twice as much as a half-year one. OMSAS also says each school may use a different GPA than the one it calculates, which is why the calculator shows all seven.
Which GPA each Ontario school uses
From each school's own page, read November 1, 2026. A minimum is the line to be considered, not a target.
| School | GPA rule | Minimum |
|---|---|---|
| McMaster | Simple average of every undergraduate course, all years treated equally, summer and supplementary courses included | 3.0 |
| NOSM University | GPA on OUAC's 4.0 scale. GPA and a context score count equally toward the interview | 3.0 |
| Ottawa | Cumulative GPA of your most recent 3 full-time years (5 courses per term), with spring and summer courses taken in that period | 3.50 |
| Queen's | Cumulative GPA only, with full-time, part-time, summer and supplemental courses | 3.0 |
| Toronto | Full-time courses only, your current year left out, no weighting by year | 3.6 (3.8 or higher competitive) |
| TMU | OMSAS-calculated GPA, one factor in a holistic review | 3.5 |
| Western | Met in each of your 2 best September to April years with at least 5 full or equivalent courses, best 5 if you took more. The year in progress can count | 3.70 each year |
Where a page leaves room, we made a call and the calculator follows it: summer courses are left out for Toronto, which counts full-time study only, and for Western's best 5 courses we take your highest values first. Check the school's page if your record is unusual.
The example student, worked out
Three full-time years of at least 5 full or equivalent courses each, plus one summer half course in year 3. Every course counts for OMSAS, McMaster and Queen's, which gives 3.74. Ottawa uses the same 3 full-time years with the summer course in them, 3.74. Toronto drops the summer course and lands at 3.77. Western takes the 2 best years, 3.91 and 3.81, and needs 3.70 in both, so its number is the lower one, 3.81. Year 1 at 3.58 doesn't count against Western at all.
After the numbers
- Starting in November of the cycle, OMSAS shows its own GPA calculations in Document Tracking. Check every course there, the dates are in our OMSAS guide.
- Past the GPA cut comes the interview, and Ottawa starts with an early-phase MMI. See which schools use the MMI and the guides for Toronto, Western and Queen's.
- Applying outside Ontario too? Every Canadian school's GPA, MCAT and Casper rule is in Canadian medical school requirements.
Questions people ask
How does OMSAS calculate GPA?
OMSAS converts every grade to its 4.0 scale using OUAC's Undergraduate Grade Conversion Table, multiplies it by the course weight (full year 2, half year 1, three-quarter 1.5, lab 0.5), adds the points and divides by the total weight. It is not an average of your yearly averages.
Where do I find my OUAC value for each grade?
On OUAC's Undergraduate Grade Conversion Table. It lists which scale your university uses, then the 4.0 value for each grade on that scale. OUAC says the table converts individual grades only, so convert each course before you average anything.
Do repeated and failed courses count in the OMSAS GPA?
Yes. OMSAS includes both the original and the repeated grade if both are on your transcript, and counts a Fail as a failure. Pass or Credit courses, college courses and graduate courses are left out, so don't enter them here.
Which GPA does each Ontario medical school use?
McMaster uses a simple average of every undergraduate course with all years equal, summer included. Queen's uses only a cumulative GPA. Ottawa uses your most recent 3 full-time years. Toronto counts full-time study only and leaves out your current year. Western needs its minimum in each of your 2 best September to April years. NOSM and TMU use your GPA on OUAC's scale.
What GPA do I need for Ontario medical schools?
The published minimums are 3.0 at McMaster, NOSM and Queen's, 3.5 at Ottawa and TMU, 3.6 at Toronto (3.8 or higher is competitive) and 3.70 in each of 2 years at Western. Meeting a minimum is not the same as getting an interview.
Is this my official OMSAS GPA?
No. OMSAS shows its own GPA calculations in Document Tracking, starting in November of the cycle, and each school may review the average. Use this to plan, then check every course there and report any error through Secure Applicant Messaging.