Both AP and IB are recognized by Canadian universities for admissions and course credit. IB HL courses can earn direct credit at UofT, McGill, and UBC in ways that individual AP scores sometimes cannot match in breadth. But neither program gives a decisive admissions advantage over the other — universities primarily evaluate grades, not program names. A student with a 94% average in the Ontario curriculum will generally be preferred over one with a 79% average in IB.
One of the most common questions families ask is whether AP or IB gives a better shot at competitive Canadian universities. The short answer: neither, by itself. The longer answer requires understanding how each school uses these programs in its admissions and credit policies.
Course Credit Policies by University
University of Toronto grants first-year course credit for IB HL courses with a score of 5 or higher, and for AP exams with a score of 4 or 5. The specific credits granted depend on the subject and faculty. A score of 5 on AP Calculus BC, for instance, can earn credit equivalent to MAT135/136 at UofT. IB Math AA HL with a 6 can do the same.
McGill University has one of the most generous IB credit policies in Canada: a full IB diploma with 30 or more points earns 30 credits of advanced standing, which can fulfill an entire semester’s worth of requirements. AP credits at McGill are granted on a per-subject basis and are generally less generous in total than a strong IB diploma.
Waterloo’s policy focuses on prerequisites more than credits: they want to see that an applicant has the mathematical preparation required, whether that comes from AP, IB, or the Ontario curriculum. Credit for specific courses is more limited at Waterloo than at UofT or McGill.
What Admissions Officers Actually Look At
For most Ontario undergraduate programs, the admission average calculation drives most of the decision. A student’s program name — IB, AP, Ontario — is secondary. What matters is the grade converted to an Ontario-equivalent percentage and compared against the program’s cutoff.
Ontario universities have standardized conversion scales for IB scores. A 7 in an IB HL course typically converts to the high 90s. A 5 in IB HL typically converts to the mid-80s. These conversions mean that a student with middling IB scores is not automatically competitive.
The IB Diploma Bonus
At McGill, completing the full IB diploma (not just individual courses) unlocks the advanced standing credit policy described above. This is a meaningful benefit for strong IB students and is one of the clearest cases where the diploma itself — not just the individual course scores — creates an admissions and credit advantage.
At most other Canadian universities, the diploma itself does not add points to the admission calculation. Each course or exam is evaluated individually. The “bonus” at these schools comes only from having strong scores in subjects that map to required prerequisites and earn credit hours.
AP and IB for US University Applications
For US applications, AP exams carry more weight than they do in Canada — they are a standard part of the American high school curriculum and expected by highly selective schools. IB is recognized and respected at US universities, but the AP system is more familiar to American admissions officers and used more consistently in the application review process.
Toronto students applying to both Canadian and US universities can benefit from either program, but a strong AP transcript (multiple 4s and 5s) tends to communicate clearly to US admissions offices in a language they know well.
Our Recommendation
Choose based on the student’s school options and target universities, not on which program “looks better.” If the school has a strong IB program and the student can maintain 6s and 7s in HL courses, IB is an excellent path — especially for McGill or any UK university. If the student is in a school with strong AP offerings and has a clear STEM direction, loading up on AP Math and Science with strong scores achieves the same admissions outcome at less total workload cost.
The single worst outcome is being in IB with grades in the 4-5 range across HL courses. Those scores convert to averages that are not competitive for programs where Ontario students with 90%+ averages are the norm.
Exploring Scholar works with both AP and IB students in Toronto. If your family is weighing which program to pursue, or needs support to make the most of the program you are already in, visit our programs page.
Frequently Asked Questions
Does taking AP or IB guarantee a higher admission average?
No. A higher admission average requires high grades in the courses you take, regardless of the program. AP and IB can earn course credit after admission, but they do not inflate the admission average itself. The grade in the course is what matters.
Can an IB diploma from outside Ontario be used in OUAC applications?
Yes. Students with international IB credentials apply through OUAC 105 rather than OUAC 101. Their IB scores are converted using the same provincial scale. International students with strong IB diplomas are very competitive for Ontario programs.
What is the minimum IB score for university credit at McGill?
For the advanced standing credit block, a student needs to complete the full IB diploma with 30 or more points. Individual HL course credits at McGill typically require a score of 5 or higher, with some subjects requiring a 6.
If a student takes AP courses but not the exam, does it help?
For US applications, taking the course but not the exam (or scoring below 3) does not generate a benefit. For Canadian applications, the course name may appear on a transcript, but without an exam score there is no course credit and the course name itself carries little weight in the admissions calculation.
Planning for University Admissions?
Our team works with students across AP and IB programs to keep grades where they need to be for competitive Ontario and US university programs.