University of Windsor
GPA Calculator
Calculate your UWindsor GPA from your percentage grades using the official OUAC 4.0 conversion of the University of Windsor percentage grading scale.
UWindsor GPA Calculator
Add each course with its letter grade and credit weight. Grade points follow the OUAC Grade Conversion Table used for UWindsor percentages.
Add Your Courses
UWindsor records percentage grades; the 4.0 scale follows OUAC, where A+ = 4.0 and A = 3.9.
| Course | Grade | Credits | Actions |
|---|
How UWindsor GPA Is Calculated
UWindsor reports a percentage average, but the OUAC 4.0 GPA uses the standard weighted-average formula based on grade points and credit weights.
📝 Worked Example
Suppose a student completes 5 courses with the following percentage grades and credits:
| Course | Credits | Percentage | Grade / Point | Credit Points |
|---|---|---|---|---|
| Course 1 | 3 | 92% | A+ / 4.0 | 3 × 4.0 = 12.0 |
| Course 2 | 3 | 87% | A / 3.9 | 3 × 3.9 = 11.7 |
| Course 3 | 3 | 74% | B / 3.0 | 3 × 3.0 = 9.0 |
| Course 4 | 1.5 | 68% | C+ / 2.3 | 1.5 × 2.3 = 3.45 |
| Course 5 | 3 | 81% | A− / 3.7 | 3 × 3.7 = 11.1 |
| Total | 13.5 | — | — | 47.25 |
Plugging into the formula:
UWindsor Percentage to GPA Converter
Enter a percentage grade and get its OUAC 4.0-scale grade point and letter equivalent instantly.
Convert Percentage → GPA
Enter any UWindsor percentage between 0 and 100.
How the Conversion Works
UWindsor transcripts carry the percentage as the official grade. To get a 4.0 GPA, the percentage is matched to its letter band and the band's OUAC grade point is used:
Example: A grade of 88% falls in the A band (85–89.9%), which equals a grade point of 3.9 on the 4.0 scale.
Official UWindsor Grading Scale
UWindsor uses a percentage scale; the 4.0 equivalents follow the OUAC Grade Conversion Table.
📘 Undergraduate Percentage → 4.0 Scale
Percentage bands with letter and OUAC 4.0-scale grade points.
| Percentage | Letter Grade | 4.0 Scale | Performance |
|---|---|---|---|
| 90–100 | A+ | 4.0 | Excellent |
| 85–89.9 | A | 3.9 | Excellent |
| 80–84.9 | A− | 3.7 | Excellent |
| 77–79.9 | B+ | 3.3 | Good |
| 73–76.9 | B | 3.0 | Good |
| 70–72.9 | B− | 2.7 | Good |
| 67–69.9 | C+ | 2.3 | Satisfactory |
| 63–66.9 | C | 2.0 | Satisfactory |
| 60–62.9 | C− | 1.7 | Satisfactory |
| 57–59.9 | D+ | 1.3 | Marginal |
| 53–56.9 | D | 1.0 | Marginal |
| 50–52.9 | D− | 0.7 | Marginal |
| 0–49.9 | F | 0.0 | Fail |
UWindsor GPA — Frequently Asked Questions
What grading scale does the University of Windsor use?
UWindsor uses a percentage marking scale (0–100). Instructors record integer percentage grades, and those are the official transcript grades. A 4.0-scale equivalent is provided through the OUAC Grade Conversion Table.
How do I convert a UWindsor percentage to a 4.0 GPA?
Match your percentage to its letter band, then take the 4.0-scale value for that band. For example, 88% is in the A band (85–89.9%), which equals 3.9.
Is a grade of A worth 4.0 at UWindsor?
No. Under the OUAC conversion only A+ (90–100%) equals 4.0. A grade of A (85–89.9%) converts to 3.9 on the 4.0 scale.
Can I calculate my cumulative GPA mid-program?
Yes. Add every course completed so far in the calculator above, and the result is your cumulative 4.0 GPA based on completed credits.
Reference: Percentage scale verified against the University of Windsor Senate Policy on Grading and Calculation of Averages; 4.0 equivalents follow the OUAC Grade Conversion Table.