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Western University Average Calculator
Western University in London, Ontario records grades as percentages. Students usually talk about their average rather than a GPA. Enter each course with its final percentage and its course weight (0.5 for a half course, 1.0 for a full course). The calculator gives your weighted average and the letter for each course.
The letters come from Western’s university-wide grade descriptors, which Senate approved and which are printed on the back of transcripts: A+ is 90–100, A is 80–89, B is 70–79, C is 60–69, D is 50–59 and F is below 50. Western has no plus or minus grades except A+, so an 89 and an 80 are both an A. For an Ontario medical school application, use the OMSAS conversion instead. It assigns a 4.0-scale value to each percentage band.
Default example: 78, 84, 88 and 69 in half courses plus 73 in a full course. That gives 232.5 weighted points over 3.0 course weights, an average of 77.50%, which is a B.
Result and step-by-step working
Letter equivalent of the average: B · 3 course weight
| Course | Percent | Letter | Course weight | Percent × course weight |
|---|---|---|---|---|
| Calculus 1000A | 78% | B | 0.5 | 39 |
| Biology 1001A | 84% | A | 0.5 | 42 |
| Psychology 1002 | 73% | B | 1 | 73 |
| Writing 1000F | 88% | A | 0.5 | 44 |
| Chemistry 1302B | 69% | C | 0.5 | 34.5 |
- Weight each mark by its course weightSum of percent × course weight = 232.5 over 3 course weight.
- Divide232.5 ÷ 3 = 77.50%.
- LetterWestern’s university-wide descriptors: 90–100 = A+, 80–89 = A, 70–79 = B, 60–69 = C, 50–59 = D, below 50 = F.
Western University grade descriptors
| Letter | Percent | Descriptor |
|---|---|---|
| A+ | 90–100 | One could scarcely expect better from a student at this level |
| A | 80–89 | Superior work which is clearly above average |
| B | 70–79 | Good work, meeting all requirements |
| C | 60–69 | Competent work, meeting requirements |
| D | 50–59 | Fair work, minimally acceptable |
| F | below 50 | Fail |
Source: Western University Academic Calendar, academic policies (university-wide grade descriptors).
Frequently asked questions
- Does Western University use a GPA?
- Western records percentage grades and reports averages, not a 4.0 GPA. Graduate schools and application services that need a GPA convert your percentages with their own tables, such as the OMSAS table.
- What is an A at Western?
- 80–89%. An A+ is 90–100%. There is no A− or B+.
- How do half courses count?
- A half course (0.5) counts half as much as a full course (1.0) in the weighted average.
- Is 50% a pass at Western?
- Yes, 50–59% is a D (fair work, minimally acceptable). Many programs need higher marks to progress, so check your program’s requirements.
Last reviewed: October 9, 2026. Calculations run in your browser; nothing you enter is sent anywhere.