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Ontario high school (OSSD) applicants
Ontario Top 6 Average Calculator
Quick answer: Ontario universities average six Grade 12 4U/M marks, but each one picks the six its own way. Waterloo, Western, McMaster, Guelph and others put your program’s required courses in first and add your best remaining marks; TMU, Windsor and Lakehead take your best six whether or not the required courses are among them. Enter your marks once to see your average at all 25 universities.
Ontario admission average calculator
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Your average at every Ontario university
| University | How it builds the average | Your average | English | Published minimum |
|---|
Applies to: Ontario high school applicants, fall 2027 entryRules: from each universityChecked: 2026-10-02Sources: 25 universities’ OUAC guide and admissions pages (below)
Unofficial estimate. Programs can set their own required courses, minimum marks and averages, and admission is competitive; only the university can tell you your admission average.
How to use it
Enter each Grade 12 U or M course with its course code and your mark. Tick “Required” for the courses your program lists as prerequisites (check the program’s page). Leave out co-op credits. Pick a university to see which six marks it would use (they are highlighted), and read the table under the result for your average at every Ontario university.
There is no single Ontario rule
OUAC, the Ontario Universities’ Application Centre, collects your marks, but each university writes its own admission-average rule. Read strictly from their own words, they fall into these groups:
- Required courses for your program, plus your best remaining 4U/M courses to make six: Carleton University, University of Guelph, University of Guelph-Humber, McMaster University, Nipissing University, Université de l'Ontario français, University of Ottawa, University of Waterloo, Western University, Huron University (at Western).
- Six 4U/M courses including Grade 12 U English: OCAD University.
- Your best six 4U/M courses, whether or not they include your program's required courses: Lakehead University, Toronto Metropolitan University, University of Windsor.
- Best six 4U/M for most programs; some programs put their required courses in the average: Trent University, Wilfrid Laurier University, York University.
- Six 4U/M courses; the university does not publish how it picks them: Algoma University, Brock University, Laurentian University, Ontario Tech University, Saint Paul University, Queen's University, University of Toronto, King's University College (at Western).
Where a university does not publish how it picks the six (the last group), the calculator shows your best six and, if you ticked required courses, the average with them forced in. Where only some programs put required courses in (Trent, Laurier, York), it shows both.
Each university’s rule, in its own words
| University | How it calculates the admission average (its own words) | Sources |
|---|---|---|
| Algoma University Six 4U/M courses; the university does not publish how it picks them | “If you are a Group A applicant, you must present the following: an Ontario Secondary School Diploma, a minimum of six 4U/M level courses, ENG4U (required for all degree programs) and the specific prerequisite courses for your degree program of interest.” | OUAC guide university page |
| Brock University Six 4U/M courses; the university does not publish how it picks them | “Six Grade 12 4U or 4M-level credits, including program specific prerequisites; Co-op courses are not included in the six credit count, nor calculated into your admission average” “A minimum admission average of 70% (many programs require a higher average);” | university page OUAC guide |
| Carleton University Required courses for your program, plus your best remaining 4U/M courses to make six | “The Overall Average is calculated using best six 4U or M courses, including prerequisites required to maintain your conditional offer of admission.” “OSSD with six Grade 12 courses at the 4U or 4M level Prerequisite courses must be at the 4U level with no individual grade below 60% Grade 12 English 4U is recommended for all degrees Grade 12 4U/4M credits for co-op work experience will not be considered as part of the six courses” | university page university page |
| University of Guelph Required courses for your program, plus your best remaining 4U/M courses to make six | “We use your top 6 completed 4U/M (or equivalent) courses, including required courses, to calculate your admission average. Where not available, we use a combination of the top 6 completed or in-progress 4U/M and completed 3U/M courses, including required subjects. If no 4U/M courses are in progress or completed, we will use your top six 3U/M courses to calculate your admission average.” “What if I repeat a course?We use the highest grade reported for all courses completed at Ministry inspected schools.” | OUAC guide university page university page |
| University of Guelph-Humber Required courses for your program, plus your best remaining 4U/M courses to make six | “Your admission average is calculated using your top six 4U/M courses, including your subject requirements.” “When all 4U/M grades are not available, we use a combination of your top six completed or in-progress 4U/M and completed 3U/M courses, including required subjects, for all rounds of offers.” | university page OUAC guide |
| Lakehead University Your best six 4U/M courses, whether or not they include your program's required courses | “**Admission averages are calculated using the top 6 Grade 12 U or M courses.” “A minimum 70%* overall final average**” | university page OUAC guide |
| Laurentian University Six 4U/M courses; the university does not publish how it picks them | “To be admissible to Laurentian University, you must have completed six 4U/M courses and have achieved your Ontario Secondary School Diploma. Each program has specific admission requirements (subject areas).” | OUAC guide university page university page university page |
| McMaster University Required courses for your program, plus your best remaining 4U/M courses to make six | “Second Round of Offers: Late April to Early May Based on six 4U/M course grades available as of the second semester midterms, including all required courses.” “If you have repeated up to two courses, the highest mark reported will be used to calculate your admission average. If you repeat more than two courses, or an individual course three or more times, you may be asked to provide a letter explaining the need for the repeats.” | OUAC guide university page university page |
| Nipissing University Required courses for your program, plus your best remaining 4U/M courses to make six | “We calculate admission averages using the best six 4U/M marks (midterm or interim and final), including prerequisite courses. Prerequisite courses must be at the 4U level.” “The minimum average for full-time admission consideration for most degree programs at Nipissing is at least 70% and may be higher.” | OUAC guide university page |
| OCAD University Six 4U/M courses including Grade 12 U English | “For Group A applicants, we require an Ontario Secondary School Diploma with an overall academic average of at least 70% in six 4U/M courses, including a 4U English (ENG4U, EAE4U, EWC4U or ETS4U) with a minimum final grade of 70%.” | OUAC guide university page |
| Université de l'Ontario français Required courses for your program, plus your best remaining 4U/M courses to make six | “6.2.3 La moyenne d'admission est calculée à partir des six meilleures notes provisoires ou finales des cours de niveau 4U ou 4M, y compris les cours préalables au programme auquel le.la candidat.e demande l'admission. Une vérification de la moyenne d'admission, ainsi que de la preuve que le diplôme a été obtenu, est faite lorsque la note finale est disponible.” “An Ontario Secondary School Diploma with successful completion of at least six 4U/M-level courses with an overall average of 70%, including: a minimum grade of 70% in the required prerequisite courses for the chosen program, including FRA4U,or a minimum grade of 75% in FIF4U or FEF4U, and successful completion of a test demonstrating the ability to study in French.” | OUAC guide university page |
| Ontario Tech University Six 4U/M courses; the university does not publish how it picks them | “You must have an Ontario Secondary School Diploma with a minimum of six 4U/M credits or equivalent, including credits and courses that satisfy the academic prerequisites of specific programs. You must also present a competitive admission average.” “We will use the highest grade obtained in a course to calculate your admission average.” | OUAC guide university page university page university page |
| University of Ottawa Required courses for your program, plus your best remaining 4U/M courses to make six | “We use six Grade 12 grades (4U/4M, interim or final) and include the prerequisites for your chosen program.We must have grades for all the prerequisite courses (interim or final grades).We send out denials of admission and alternative offers during this round.” “You must have an Ontario high school diploma with at least six 4U/M- or DU-level courses to be eligible for admission to the first year of university.” | OUAC guide university page university page |
| Saint Paul University Six 4U/M courses; the university does not publish how it picks them | “You must have an Ontario Secondary School Diploma (OSSD) with at least six 4U/M or DU courses, including one 4U course in English or French.” “The minimum admission average is 70% (except for Quebec applicants from secondary school: see below). Some programs may require a higher average.” | OUAC guide university page |
| Queen's University Six 4U/M courses; the university does not publish how it picks them | “The Ontario Secondary School Diploma and six 4U/M courses are required. You must have ENG4U plus five other 4U/M courses. Students in francophone schools may offer EAE4U or FRA4U in place of ENG4U.” “The table below corresponds to the minimum average (based on prerequisite courses) required for admission consideration for September of last year.” | OUAC guide university page university page university page university page |
| University of Toronto Six 4U/M courses; the university does not publish how it picks them | “Ontario Secondary School Diploma (OSSD) with six subjects at the 4U/M level, including English” “Grade 12 English (ENG4U / EAE4U or its equivalent) is required for all programs.” | OUAC guide university page university page |
| Toronto Metropolitan University Your best six 4U/M courses, whether or not they include your program's required courses | “The overall average is calculated using marks in the best six Grade 12 U or M courses, which may include repeated or upgraded course marks.” “The overall average may or may not include the prerequisite courses.” | OUAC guide university page |
| Trent University Best six 4U/M for most programs; some programs put their required courses in the average | “For most programs, we will calculate your admission average based on your best six 4U/M level courses. This means that we may not necessarily include a pre-requisite in your average calculation. Keep in mind that you must have a passing grade in each pre-requisite for your program. Trent requires all applicants to have a minimum of 60% in your ENG4U course.” “Admission average is calculated on required courses, plus three next best 4U/M courses.” | OUAC guide university page university page |
| University of Waterloo Required courses for your program, plus your best remaining 4U/M courses to make six | “We don’t weigh courses differently, but we will always include the courses which are required for admission in your admission average. We will then use your remaining courses with the highest grades to calculate your overall admission average.” “Language courses taken at an institution accredited by the Ontario Ministry of Education and that have a DU level designation are considered as 4U/M courses and can be included in top 6 course averages.” | OUAC guide university page university page |
| Western University Required courses for your program, plus your best remaining 4U/M courses to make six | “We'll look at the grades in required courses for your program, plus your highest grade 12 grades” “A minimum of six grade 12U/M level courses (excluding co-op), including: English (ENG4U)” | OUAC guide university page university page |
| Huron University (at Western) Required courses for your program, plus your best remaining 4U/M courses to make six | “Your admission average is based on your best six 4U/M grades, including prerequisite courses.” “A complete High School Diploma, including: ENG4U Five additional academic 4U/M level courses Required courses for your program.” | OUAC guide university page |
| King's University College (at Western) Six 4U/M courses; the university does not publish how it picks them | “We consider Group A applicants for admission based on a minimum of six 4U/M courses (excluding co-op), including ENG4U and any additional required courses specific to your program.” | OUAC guide university page |
| Wilfrid Laurier University Best six 4U/M for most programs; some programs put their required courses in the average | “If you are a Group A applicant, admission is based on your top six 4U/M courses. For some programs, we include your required courses when we calculate your admission average (refer to your program page). A 4U English at a minimum of 60% (or higher for some programs) is required. All required courses listed in your program’s admission requirements must be at a minimum of 60% (or higher for some programs).” “All Science programs, BBA programs (including Double Degrees), and Economics programs include required courses as a part of your admission average. All other programs calculate your admission average using your top six 4U/M courses (or equivalent).” | OUAC guide university page university page |
| University of Windsor Your best six 4U/M courses, whether or not they include your program's required courses | “Your top 6 U or M courses are the courses considered for your admissions average and scholarships. If the required courses happen to be in the top 6 then yes, they are included. If you happen to have more than 6 U or M courses, we use the top 6 whether the required courses are included in that or not.” “All programs require successful completion of the Ontario Secondary School Diploma and a minimum 70% average of six 4U/M courses, including English. Some exceptions do apply, and the entrance average may be higher depending on the number of applicants.” | OUAC guide university page university page |
| York University Best six 4U/M for most programs; some programs put their required courses in the average | “Requirements for admission: Ontario Secondary School Diploma (OSSD) ENG4U And five additional 4U or M courses” “Maintaining your offer of admission to this program requires a final academic average of 78%, calculated using the required courses below: English (ENG4U) Advanced Functions (MHF4U) Calculus & Vectors (MCV4U) or Data Management (MDM4U) Three additional 4U/M courses” | OUAC guide university page university page university page |
English, minimum averages and repeated courses
University-wide requirements only; many programs set higher ones.
| University | English requirement | Published minimum average | Repeated courses |
|---|---|---|---|
| Algoma University | ENG4U required for all degree programs | — | — |
| Brock University | — | 70% | — |
| Carleton University | Grade 12 English 4U recommended for all degrees | — | — |
| University of Guelph | — | — | Highest grade (Ministry-inspected schools) |
| University of Guelph-Humber | ENG4U or equivalent (e.g. EAE4U) required | — | Highest grade (Grade 12 U/M at a Ministry-approved school) |
| Lakehead University | — | 70% | Highest grade |
| Laurentian University | — | — | — |
| McMaster University | — | — | Highest mark, for up to two repeated courses |
| Nipissing University | — | 70% | Higher grade |
| OCAD University | Grade 12 U English, minimum 70%, among the six | 70% | — |
| Université de l'Ontario français | FRA4U minimum 70% (French-language university) | 70% | — |
| Ontario Tech University | — | — | Highest grade |
| University of Ottawa | — | — | — |
| Saint Paul University | One 4U course in English or French | 70% | — |
| Queen's University | ENG4U (EAE4U or FRA4U in francophone schools) | — | Most recent grade (all programs) |
| University of Toronto | ENG4U/EAE4U required for all programs | — | May take repeated courses into account |
| Toronto Metropolitan University | Grade 12 U English required (ENG4U/EAE4U preferred) | 70% | Best six may include repeated or upgraded marks |
| Trent University | ENG4U, minimum 60% | 70% | Higher grade |
| University of Waterloo | — | — | Highest grade |
| Western University | ENG4U required; required courses need at least 70% | — | Highest grade from all attempts |
| Huron University (at Western) | ENG4U required | — | — |
| King's University College (at Western) | ENG4U required | — | — |
| Wilfrid Laurier University | 4U English, minimum 60% | — | Science and Lazaridis programs: weighted average of first and latest attempts on required courses |
| University of Windsor | ENG4U required | 70% | — |
| York University | ENG4U listed in program requirements | — | May be considered in holistic review |
Worked example
Marks: ENG4U 88, MHF4U 91, MCV4U 85, SCH4U 82, SPH4U 76 (all required for the program), SBI4U 90, CHY4U 93, HSB4M 89, MDM4U 95. Best six: 95, 93, 91, 90, 89, 88 = 546 ÷ 6 = 91.00%. Required courses first (88, 91, 85, 82, 76) plus the best remaining mark (95): 517 ÷ 6 = 86.1666… = 86.16% without rounding up. The same transcript is 91.00% at TMU and 86.16% at Waterloo.
Frequently asked questions
Does OUAC calculate my admission average?
No. OUAC sends your Grade 12 marks to the universities; each university calculates its own admission average with its own rule, which it publishes on its OUAC guide page or its own admissions site. That is why the same marks can give different averages at different universities.
Are my prerequisite courses always in my top 6?
Not always. Waterloo, for example, says it will “always include the courses which are required for admission” and then use your highest remaining marks, while TMU says “The overall average may or may not include the prerequisite courses” and Windsor uses your top six whether or not the required courses are among them.
Do Grade 11 marks count?
In the final average, no: it uses Grade 12 U/M courses. Guelph and Guelph-Humber say that when six 4U/M grades are not available they use a combination with completed 3U/M courses, and several universities use Grade 11 marks to make early conditional offers.
What if I repeated a course?
It depends on the university. Most that say use your highest grade (Guelph, Lakehead, Nipissing, Ontario Tech, Trent, Waterloo, Western; McMaster for up to two repeats), but Queen's uses the most recent grade for all programs, and Laurier's Science and Lazaridis programs use a weighted average of the first and latest attempts on required courses.
Are averages rounded?
TMU says averages are “based on two decimal places and are not rounded up or down”, and Laurier says “we do not round up averages”. The calculator shows every average to two decimals without rounding up.
Do co-op courses count?
Several universities exclude them: Brock, Guelph, Toronto, TMU, Western, King's and others say the co-op (or its out-of-school) component does not count toward the admission average. Leave co-op credits out.
Sources
- Algoma University — www.ouac.on.ca/guide/undergrad-algoma, algomau.ca/admissions/admissions-requirements/ — OUAC page last updated September 17, 2026; algomau.ca read 2026-10-02
- Brock University — brocku.ca/admissions/ontario-secondary-schools/, www.ouac.on.ca/guide/undergrad-brock — read 2026-10-02 (OUAC page last updated September 14, 2026)
- Carleton University — admissions.carleton.ca/applicant-type/current-ontario-high-school-stud, admissions.carleton.ca/conditional-offer-101/ — read 2026-10-02 (pages for 2027-2028 admission)
- University of Guelph — www.ouac.on.ca/guide/undergrad-guelph, www.uoguelph.ca/admission/undergraduate/next-steps, www.uoguelph.ca/admission/undergraduate/guidance — OUAC page last updated September 14, 2026; uoguelph.ca pages read 2026-10-02
- University of Guelph-Humber — www.guelphhumber.ca/admission/ontario-high-school, www.ouac.on.ca/guide/undergrad-guelph-humber — read 2026-10-02 (OUAC page last updated September 14, 2026)
- Lakehead University — www.lakeheadu.ca/studentcentral/applying/general-admission-requirement, www.ouac.on.ca/guide/undergrad-lakehead — read 2026-10-02 (OUAC page last updated September 17, 2026)
- Laurentian University — www.ouac.on.ca/guide/undergrad-laurentian, laurentian.ca/academics/admissions/undergraduate/ontario-high-school-a, laurentian.ca/academics/explore/ouf, laurentian.ca/academics/program/earth-sciences — read 2026-10-02 (OUAC page last updated September 14, 2026)
- McMaster University — www.ouac.on.ca/guide/undergrad-mcmaster, future.mcmaster.ca/apply/pre-application/ontario-high-school/, future.mcmaster.ca/programs/health-sciences/ — OUAC page last updated September 17, 2026; future.mcmaster.ca read 2026-10-02
- Nipissing University — www.ouac.on.ca/guide/undergrad-nipissing, future.nipissingu.ca/requirements/average-calculation/ — OUAC page last updated September 14, 2026; nipissingu.ca read 2026-10-02
- OCAD University — www.ouac.on.ca/guide/undergrad-ocad, admissions.ocadu.ca/apply/academic-requirements — read 2026-10-02 (OUAC page last updated September 14, 2026)
- Université de l'Ontario français — www.ouac.on.ca/guide/undergrad-ontario-francais, uontario.ca/fileadmin/Site_Corpo/Documents_0_papier/Politiques_et_dire — OUAC page last updated September 14, 2026; UOF admission policy PDF 'rév 2022.08.26, modif 2024-03-22' (read 2026-10-02)
- Ontario Tech University — www.ouac.on.ca/guide/undergrad-ontario-tech, admissions.ontariotechu.ca/applicant-information/ontario-high-school-a, admissions.ontariotechu.ca/faqs/, admissions.ontariotechu.ca/special-considerations/upgrading.php — OUAC page last updated September 17, 2026; ontariotechu.ca read 2026-10-02
- University of Ottawa — www.ouac.on.ca/guide/undergrad-ottawa, www.uottawa.ca/study/undergraduate-studies/how-to-apply/ontario-high-s, www.uottawa.ca/study/undergraduate-studies/program-prerequisites — OUAC page last updated September 14, 2026; uottawa.ca read 2026-10-02
- Saint Paul University — www.ouac.on.ca/guide/undergrad-saint-paul, ustpaul.ca/en/admissions-and-student-services-applications/admission-r — read 2026-10-02
- Queen's University — www.ouac.on.ca/guide/undergrad-queens, www.queensu.ca/admission/applying/admission-requirements/ontario, www.queensu.ca/admission/applying/competitive-average, www.queensu.ca/admission/admission-procedures-and-exceptions, www.queensu.ca/admission/applicants/faqs — read 2026-10-02
- University of Toronto — www.ouac.on.ca/guide/undergrad-toronto, future.utoronto.ca/requirements-canadian-high-schools, future.utoronto.ca/admission-decisions — read 2026-10-02
- Toronto Metropolitan University — www.ouac.on.ca/guide/undergrad-tmu, www.torontomu.ca/admissions/undergraduate/requirements/ontario/ — read 2026-10-02
- Trent University — www.ouac.on.ca/guide/undergrad-trent, www.trentu.ca/futurestudents/admissions/admission-requirements/ontario, www.trentu.ca/futurestudents/admissions/admissions-faq — read 2026-10-02
- University of Waterloo — www.ouac.on.ca/guide/undergrad-waterloo, uwaterloo.ca/future-students/admissions/faqs-admissions, uwaterloo.ca/future-students/admissions/repeated-courses — read 2026-10-02
- Western University — www.ouac.on.ca/guide/undergrad-western, welcome.uwo.ca/next-steps/requirements/ontario-high-school.html, welcome.uwo.ca/next-steps/requirements/index.html — read 2026-10-02
- Huron University (at Western) — www.ouac.on.ca/guide/undergrad-huron, huronu.ca/future-students/ontario-high-school/ — read 2026-10-02
- King's University College (at Western) — www.ouac.on.ca/guide/undergrad-kings, kings.uwo.ca/admissions-finance/how-to-apply/secondary-school/ontario/ — read 2026-10-02
- Wilfrid Laurier University — www.ouac.on.ca/guide/undergrad-laurier, www.wlu.ca/future-students/undergraduate/admissions/requirements/index, www.wlu.ca/future-students/undergraduate/admissions/process/admission- — read 2026-10-02
- University of Windsor — www.ouac.on.ca/guide/undergrad-windsor, ask.uwindsor.ca/app/answers/detail/a_id/181/, www.uwindsor.ca/registrar/498/undergraduate-admission-requirements — ask.UWindsor answer a_id 181 updated 02/05/2025; others read 2026-10-02
- York University — www.ouac.on.ca/guide/undergrad-york, futurestudents.yorku.ca/your-application/how-apply/high-school-student, futurestudents.yorku.ca/requirements/docs-required, futurestudents.yorku.ca/admitted — read 2026-10-02
All read on 2026-10-02; every quote was re-opened and checked against its page.