MCAT Guide

Owl with MCAT section symbols
What is the MCAT?

The Medical College Admission Test (MCAT) is a standardized examination run by the Association of American Medical Colleges (AAMC) that is used as a tool to assess applicants for medical schools around the world.

Good to know

The MCAT is entirely multiple choice and is taken on a computer in an AAMC approved testing center. In the exam room you will not be allowed any food, water or outside electronic devices. All your personal belongings will be lockedi in a locker that you can only access during scheduled breaks between sections.

Retakes

You can take the MCAT a maximum of 7 times in your lifetime. In one calender year you can take the MCAT 3 times MAX, and over two calender years you can take it 4 times MAX. Most schools only look at your last MCAT score, so if you are retaking it make sure you improve your score. Queen's is the only school in Ontario that looks at your best score.

Cost

Although you can take the MCAT multiple times, keep in mind that it is not a cheap test. It costs $345 USD if you are taking it in Canada or the US, and more if you are taking it elsewhere. Also consider that seats in test centers are limitted, so if you cannot find a spot at a nearby center you will need to write the MCAT in another region, and that may have additional associated costs.

MCAT Sections

The MCAT consists of four sections:

  • ⚗️
    Chemical and Physical Foundations of Biological Systems (C/P)

    59 questions over 95 minutes

    Approximate breakdown of disciplines: 30% General Chemistry, 25% Biochemistry, 25% Physics, 15% Organic Chemistry, 5% Biology

  • 📚
    Critical Analysis and Reasoning Skills (CARS)

    59 questions over 95 minutes

    There are 9 passages in CARS, each with 5-7 associated questions. 50% of the passages are humanities and the other 50% are social sciences. There are no discrete questions in CARS because every question is related to a passage.

  • 🧬
    Biological and Biochemical Foundations of Living Systems (B/B)

    59 questions over 95 minutes

    Approximate breakdown of disciplines: 65% Biology, 25% Biochemistry, 5% General Chemistry, 5% Organic Chemistry

  • 🧠
    Psychological, Social, and Biological Foundations of Behavior (P/S)

    59 questions over 95 minutes

    Approximate breakdown of disciplines: 65% Psychology (this includes some biologically relevant psychology concepts), 30% Sociology, 5% Biology

Score

Each section is scored on a scale from 118 to 132, with a total score ranging from 472 to 528.

The MCAT score is scaled, NOT curved. This detail is a common point of confusion for test takers. If you are interested in an explanation of what that means and more, see

Ontario Medical School MCAT Requirements

Each Ontario medical school has different MCAT requirements:

  • University of Toronto

    Minimum of 125 in each section, with allowance for 124 in one section.

  • McMaster University

    Only considers the CARS section with a minimum score of 123. Competitive applicants typically have 128+.

  • Queen's University

    Minimum of 125 in each section. Queen's is the only school in Ontario that takes your best MCAT score.

  • Western University

    Cutoffs determined yearly. For 2024-2025: C/P: 127, CARS: 127, B/B: 127, P/S: 126. SWOMEN pathway allows for 125 in each section.

  • University of Ottawa

    Does not require the MCAT for Ontario applicants.

Study Strategies

How you should go about studying for the MCAT is dependent on many variables. So, despite what you may read online, there is no "best" way to prepare for this exam. If you have a strong background in chemistry and physics, you can score well in the C/P section without studying at all. Or if you have a slow reading speed, you may need to approach CARS differently from someone who can easily scan a passage. You need to reflect on your strengths and weaknesses early and figure out what preparation technique will work best for you.

We know we just said that there is no "best" way to prepare for the MCAT. But we strongly recommend understanding concepts well, and not treating the MCAT like a large memorization game. The MCAT can feel overwhelming if your only study method is trying to rmember all the facts. But realistically, each section only has a few concepts that you can be tested on, and if you understand the concepts well, not only will you be able to apply your knowledge more flexibly, but you will also not have to remember so many things. Concepts tend to tie into each other, so you will save yourself a lot of effort and stress.

Popular Resources:

AAMC Materials [Paid]:
Includes graded practice tests and question banks that are most representative of the real MCAT because they are straight from the makers of the exam. This is especially useful for CARS because no other resource has passages quite like the AAMC. If you can only budget for 1 paid resource we would recommend AAMC. When using this resource, we recommend that you distribute your full length practice exams such that you have ~2 remaining a week before your exam and can exactly replicate testing conditions. Note: AAMC provides one FREE full length practice exam for everyone.
UWorld [Paid]:
Includes a huge question bank for each of the MCAT sections. Within the 4 broad MCAT sections the questions are divided into specific topics so you can determine what your weaknesses are and focus on them. Additionally, the explanations that they give for each concept are very clear and include great tables, graphs and illustrations.
Jack Westin [Free]:
The most notable part of Jack Westin are the free daily CARS practice passages. You can also access passages+questions from past days. These are not always super representative of the AAMC passage style, but it is an excellent way to find a feel for how you want to approach tackling passages. We recommend that you start doing these daily passages as early in your preparation timeline as possible.
Khan Academy [Free]:
Khan Academy is continuing is partnership with the AAMC intul 2026. This partnership includes 1100 videos and 3000 practice problems for absolutely free. This content includes most of what you need to know for the MCAT, but sometimes lacks nuances or fine details that can help you deeply understand a concept.
Prep Books [Paid]:
Comprehensive content review books from Kaplan, Princeton Review, and Examkrackers. Darren (my study partner who got 132/131/131/127) read through some Kaplan and I read through some Princeton during our prep, but both of us concluded the boks were not very useful. They are under value if you are buying them full price, but if you can get a discounted version then they may be work reading just to see info presented in a new light.
MCAT Anki Decks [Free]:
Popular MCAT Anki decks include MileDown, Jacksparrow, and Anking. Darren never uses Anki so he wasn't a fan. I use Anki religiously during school semesters, however I didn't like using these cards because it felt like they prioritized rote memorization of facts over understanding concepts well. Additionally, these cards make it easy to remember a fact when given in a certain format (aka: the card that you are used to seeing), but if you must recall the same information in a new situation it can be harder.
Amino Acid Quiz App [Free]:
This is a sort of niche resource to include, but it is valuable for those who feel like they are not super familiar with the amino acids. This app quizzes you on amino acid structures, properties, and abbreviations, which are high-yield MCAT topics. If you are not confident in your Amino Acid skills, practice until you can get 100% on the important quizzes in under a minute.
YouTube Channels [Free]:
There are hundreds of channels on YouTube geared towards providing MCAT prep. When studying a topic it is worth while looking through YouTube to see if there are any well made videos. Many of the MCAT-specific YouTube channels tend to over-summarize concepts, so using other channels can give you more details. Be careful though, often times they have too much detail. You have to figure out how much effort you want to put into low-yield concepts. We highly recommend Ninja Nerd (for biochemistry) and Organic Chemistry Tutor (for many topics). Dr Matt and Dr Mike can fill in where Ninja Nerd lacks at times. Darren recommends Professor Dave Explains for content review, but I feel like he goes over concepts too hastily - give him a watch and see who you agree with.