GPA calculator from percentage
Enter a percentage and see what it becomes on every scale Canadian universities actually use — not just the American 4.0.
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What GPA is 80 percent in Canada?
On the common 4.0 scale, 80% falls in the A− band and converts to 3.7. On a 4.3 scale it is also 3.7. At the University of Ottawa, which marks out of 10, an 80% is an A− worth 8. For Ontario medical school applications the OMSAS table also gives 3.7. There is no single Canadian conversion.
There is no single Canadian GPA scale
This is the part most conversion tools skip, and it is the reason two students with identical transcripts can quote wildly different numbers.
Canadian universities run at least four scales in parallel. Many use a 4.0 scale. Ontario Tech and a number of others top out at 4.3, so an A+ is worth more than an A. The University of Ottawa marks out of 10 entirely. And Ontario's medical schools apply their own OMSAS table, which is close to a 4.0 scale but not identical to it.
The calculator above shows all four at once rather than making you pick blind. Choose the scale your institution publishes, and use the others only for comparison.
How the conversion works
This is a band lookup, not an equation — which is exactly why the scales disagree.
percentage → letter band → grade point on the chosen scale80–84% → A− → 3.7 on a 4.0 scale3.7 on a 4.3 scale8 on uOttawa's 10-point scale3.7 on the OMSAS tableWeighted GPA across several courses:GPA = Σ(grade point × credits) ÷ Σ(credits)
Because a band covers a range, conversion loses information in one direction and cannot recover it in the other. An 84% and an 80% both convert to 3.7, so turning 3.7 back into a percentage can only give you the range 80–84%, never the original mark.
That matters if an application asks for a percentage and your transcript only shows grade points. Give the range, or ask your registrar for the underlying figure — do not invent a midpoint.
Worked example: a four-course term
You finished four half-credit courses at 88%, 79%, 74% and 91%, and need a weighted GPA on a 4.0 scale.
- 88% → A → 4.0, on 0.5 credits2.00 points
- 79% → B+ → 3.3, on 0.5 credits1.65 points
- 74% → B → 3.0, on 0.5 credits1.50 points
- 91% → A+ → 4.0, on 0.5 credits2.00 points
- Total grade points ÷ total credits7.15 ÷ 2.0
A term GPA of 3.58 on a 4.0 scale.
The same four grades come to 3.65 on a 4.3 scale, because the 91% earns 4.3 there rather than 4.0. On uOttawa's 10-point scale they average exactly 8.00 — and note that the 79% counts as a B+ worth 7 there, where the 4.0 scale also calls it a B+. Same transcript, three different numbers, which is why the scale has to be stated whenever a GPA is quoted.
The full conversion table
The 4.0, 4.3 and OMSAS scales share the same percentage bands, so they can sit in one table. uOttawa's do not, and it gets its own below.
| Percentage | Letter | 4.0 scale | 4.3 scale | OMSAS |
|---|---|---|---|---|
| 90–100 | A+ | 4.0 | 4.3 | 4.0 |
| 85–89 | A | 4.0 | 4.0 | 3.9 |
| 80–84 | A− | 3.7 | 3.7 | 3.7 |
| 77–79 | B+ | 3.3 | 3.3 | 3.3 |
| 73–76 | B | 3.0 | 3.0 | 3.0 |
| 70–72 | B− | 2.7 | 2.7 | 2.7 |
| 67–69 | C+ | 2.3 | 2.3 | 2.3 |
| 63–66 | C | 2.0 | 2.0 | 2.0 |
| 60–62 | C− | 1.7 | 2.0 | 1.7 |
| 57–59 | D+ | 1.3 | 1.0 | 1.3 |
| 53–56 | D | 1.0 | 1.0 | 1.0 |
| 50–52 | D− | 0.7 | 1.0 | 0.7 |
| 0–49 | F | 0.0 | 0.0 | 0.0 |
Ontario Tech has no C−, D+ or D− grade at all — its scale runs C, then D, then F. That is why the 4.3 column diverges from the 4.0 column at the bottom rather than the top.
uOttawa's 10-point scale has its own bands
This is the detail that makes a single merged conversion table impossible. uOttawa does not just relabel the 4.0 bands with numbers out of 10 — its percentage ranges are different, and it carries an E grade that the other scales have no equivalent for.
A 76% is a B on the 4.0 scale and also a B at uOttawa, but a 78% is a B+ on both while a 75% is a B on the 4.0 scale and a B+ at uOttawa. Reading a 10-point value across from a 4.0 row is wrong at most of the boundaries, which is why the calculator above computes it separately.
| Percentage | Letter | Numeric value |
|---|---|---|
| 90–100 | A+ | 10 |
| 85–89 | A | 9 |
| 80–84 | A− | 8 |
| 75–79 | B+ | 7 |
| 70–74 | B | 6 |
| 65–69 | C+ | 5 |
| 60–64 | C | 4 |
| 55–59 | D+ | 3 |
| 50–54 | D | 2 |
| 40–49 | E | 1 |
| 0–39 | F | 0 |
The E grade covers 40 to 49% and is worth 1, not 0. In some faculties it is a failure carrying the right to a supplemental examination, which is why it exists separately from F.
Assumptions and limits
- Band boundaries differ by a point or two between institutions — your registrar's table wins
- The OMSAS row is a starting point; each medical school then applies its own weighting
- Some programmes compute a major or programme average separately from the cumulative GPA
- Repeated, failed and pass/fail courses are treated differently by different schools
- Converting a GPA back to a percentage can only ever give you a range
Terms on this page
- Grade point
- The numeric value a letter grade carries. It varies by institution — an A+ is 4.0 at Toronto, 4.3 at Ontario Tech and 10 at uOttawa.
- Weighted average
- Each course's grade point multiplied by its credit value, summed, then divided by total credits. Course weight matters, not course count.
- CGPA
- Cumulative grade point average, covering every course taken, as opposed to a sessional average for one term.
- OMSAS scale
- The conversion the Ontario Universities' Application Centre uses for medical school applications. Close to a 4.0 scale but not identical.
Common questions
What GPA is 80 percent in Canada?
On a 4.0 scale, 80% is an A− and converts to 3.7. It is also 3.7 on a 4.3 scale and on the OMSAS table. At the University of Ottawa, which uses a 10-point scale with its own percentage bands, 80% is an A− worth 8. The scale has to be stated for the number to mean anything.
Is the Canadian GPA scale the same as the American one?
Sometimes, and that is the trap. Many Canadian universities do use a 4.0 scale that looks identical to the American one, but Ontario Tech and others use 4.3, uOttawa uses 10 points, and several schools report percentages and issue no GPA at all. Framing this as a conversion to a US scale gets it wrong more often than not.
How do I calculate a weighted GPA?
Multiply each course's grade point by its credit value, add those products together, and divide by the total credits. A course worth 1.0 credits therefore counts twice as much as one worth 0.5. Simply averaging the grade points ignores course weight and gives a different answer.
Can I convert my GPA back into a percentage?
Only to a range. Because each grade point covers a band of several percentage points, a 3.7 means somewhere between 80% and 84% and nothing more precise. If an application needs an exact percentage, ask your registrar rather than picking a midpoint.
Which scale should I use for a graduate application?
The one your own institution publishes, unless the application explicitly asks for a conversion. Admissions offices are used to reading transcripts on their native scale and will convert themselves. Converting first, and getting it wrong, is the more common problem.
Where these numbers come from
- University of Toronto — Transcript grading scales and notations The 4.0 scale, including A+ and A both carrying 4.0.
- Ontario Tech University — Grading System and Academic Standing Policy (ACD 1510) The 4.3 scale and its percentage bands.
- University of Ottawa — Academic Regulation A-3, Grading System The 10-point scale, effective 1 May 2024.
- Ontario Universities' Application Centre — OMSAS The OMSAS conversion table used for Ontario medical school applications.
Last verified 2026-08-01 Rates on this page are checked against the sources above at least once a year, and whenever the governing authority announces a change. Spotted something out of date? Tell us and we will fix it.
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