Type your grades, see your GPA instantly. This calculator converts percentage or letter grades to a credit-weighted GPA on the OMSAS Scale 3 (4.0) table — the same conversion used for Ontario medical school applications. Add every course from every semester and it doubles as a cumulative GPA calculator for Canada.
How to Use This Calculator
- Add one row for each course — the course name is optional and only helps you keep track.
- Enter the grade exactly as it appears on your transcript: a percentage from 0 to 100, or switch the row to letter mode and pick the letter.
- Enter the course's credit value (most semester courses are worth 3 credits; half-courses are often 1.5 or 0.5).
- Your GPA updates instantly. Add courses from earlier semesters as well to get your cumulative GPA.
Worked example: an 85% in a 3-credit course converts to 3.9, and a 77% in another 3-credit course converts to 3.3. The GPA is (3.9 × 3 + 3.3 × 3) ÷ 6 = 3.60 — exactly what the pre-filled rows above show.
OMSAS Grade Conversion Table (Scale 3)
This is the full conversion table the calculator uses. OMSAS — the Ontario Medical School Application Service — publishes several scales for different grading systems; Scale 3 is the one applied to transcripts that report percentage grades, and it is the standard reference most Canadian students mean when they talk about a 4.0-scale GPA.
OMSAS Scale 3: percentage and letter grades to GPA values
| Percentage Grade | Letter Grade | GPA Value (OMSAS) |
|---|
| 90–100 | A+ | 4.0 |
| 85–89 | A | 3.9 |
| 80–84 | A− | 3.7 |
| 77–79 | B+ | 3.3 |
| 73–76 | B | 3.0 |
| 70–72 | B− | 2.7 |
| 67–69 | C+ | 2.3 |
| 63–66 | C | 2.0 |
| 60–62 | C− | 1.7 |
| 57–59 | D+ | 1.3 |
| 53–56 | D | 1.0 |
| 50–52 | D− | 0.7 |
| Below 50 | F | 0.0 |
How GPA Works in Canada
Unlike the United States, Canada has no single national grading scale. Education is a provincial responsibility, and every university sets its own system for recording grades and computing grade point averages. Many universities — most of Ontario's among them — grade on a 4.0 scale that looks familiar to American students. Others do not: the University of British Columbia reports percentages alongside letter grades, McMaster University uses a 12-point scale, York University uses a 9-point scale, and some institutions use a 4.3 scale where an A+ is worth 4.3 instead of 4.0. Even the percentage cut-offs behind identical letters differ from school to school.
This patchwork is exactly why a common conversion matters. When you apply to a graduate or professional program outside your own university, your grades have to be compared fairly against applicants from dozens of different grading systems. Admissions services solve this by converting every transcript onto one shared scale before calculating a GPA. The most widely used of these conversions in Canada is the OMSAS table, which is why this gpa calculator canada page is built on it: whatever scale your university uses internally, entering your percentage or letter grades here gives you the 4.0-scale GPA that application services will see. Your official transcript GPA may still differ slightly, especially if your school awards 4.3 for an A+ or weights full-year courses differently, so treat this result as the standard converted figure rather than a replacement for your university's own calculation.
OMSAS GPA Calculator
OMSAS is the Ontario Medical School Application Service, run by the Ontario Universities' Application Centre (OUAC). Every applicant to an Ontario medical school — at Toronto, McMaster, Queen's, Ottawa, Western, and NOSM — submits their transcripts through OMSAS, which converts each individual course grade into a value on a common 4.0 scale. That converted, credit-weighted average is the OMSAS GPA that medical schools actually review, and for many applicants it is noticeably different from the GPA printed on their transcript: a university that counts an A+ as 4.3, for example, will see that grade pulled back to 4.0, while a strong 85% that one school records as a mid-A holds its full 3.9 value.
Using this page as an omsas gpa calculator is straightforward. OMSAS publishes a family of conversion scales matched to different grading systems, and Scale 3 is the one that applies to percentage-based transcripts, which covers the majority of Canadian universities. Work through your transcript course by course, entering each percentage (or letter, if that is all your transcript shows) plus the course's credit or weight value — noting that OMSAS treats a full-year course as double the weight of a one-semester course, so enter 6 credits rather than 3 for a full-year course. The result is the weighted average OMSAS would compute. Remember that OMSAS includes every undergraduate course you have ever taken, including failed and repeated ones, and that individual medical schools then apply their own policies — some drop your lowest year, some weight later years more heavily — on top of the converted figure.
For Students at Canadian Universities
Students at any Canadian university can use this tool — just enter the percentages or letters from your transcript and read off the OMSAS-equivalent GPA. Students at the following universities search for this conversion most often:
- University of Toronto (U of T)
- McGill University
- University of British Columbia (UBC)
- York University
- Simon Fraser University (SFU)
- University of Guelph
- McMaster University
- University of Waterloo
- University of Ottawa
- University of Alberta
- Queen's University
One honest caution: your own university's scale may differ from OMSAS. The University of Toronto's internal 4.0 scale is very close to the OMSAS bands, so results will usually match closely. York's 9-point grades, McMaster's 12-point grades, and UBC's percentages need genuine conversion, and the numbers here reflect the OMSAS outcome, not the GPA your registrar reports. If you are checking an official standing, graduation requirement, or scholarship cut-off, confirm it with your university's own scale — and use this calculator for the converted figure that graduate and professional programs will work with.
Frequently Asked Questions
What is a 3.7 GPA in Canada?
A 3.7 GPA is an A- on the OMSAS scale, which corresponds to a percentage grade of 80–84%. It is a strong standing at most Canadian universities and is competitive for many graduate programs, although professional programs such as medicine often look for 3.8 or higher.
How does OMSAS convert grades?
OMSAS takes every grade on your transcript — whether it is reported as a percentage or a letter — and converts it to a value on its 4.0 scale using the published OMSAS conversion table (Scale 3 for most universities). Each converted value is then weighted by the course's credit or weight value, and the weighted average becomes your OMSAS GPA.
Is 85% an A in Canada?
On the OMSAS scale, yes: 85–89% is an A worth 3.9 grade points, and 90% and above is an A+ worth 4.0. Individual universities set their own letter cut-offs, so at some schools 85% may be recorded as an A while at others the band starts slightly higher or lower — but for OMSAS and most 4.0-scale conversions, 85% is an A.
Do all Canadian universities use the 4.0 scale?
No. Canada has no single national grading scale. Many universities use a 4.0 scale, but others use a 4.3 scale, a 9-point scale (York University), a 12-point scale (McMaster University), or report percentages (such as UBC). That is why services like OMSAS convert every transcript to one common scale before comparing applicants.
What is a good GPA in Canada?
A GPA of 3.0 (a B average, roughly 73–76%) is considered good standing at most Canadian universities. A 3.5 or higher is strong, and 3.7–4.0 is the competitive range for medical school, law school, and selective graduate programs. Requirements vary by program, so always check the cut-offs of the schools you are applying to.
How is a cumulative GPA calculated in Canada?
Multiply the grade points of every course you have completed by that course's credit value, add all of those products together, and divide by your total credits. This calculator does exactly that: enter every course from all of your semesters and it returns your cumulative, credit-weighted GPA on the OMSAS 4.0 scale.