The four sections
| Section | Questions | Time |
|---|---|---|
| Chemical and Physical Foundations of Biological Systems | 59 | 95 minutes |
| Critical Analysis and Reasoning Skills (CARS) | 53 | 90 minutes |
| Biological and Biochemical Foundations of Living Systems | 59 | 95 minutes |
| Psychological, Social, and Biological Foundations of Behavior | 59 | 95 minutes |
That’s 6 hours 15 minutes of testing. With the tutorial, breaks and the end-of-day questions, you’ll be seated for about 7 hours 30 minutes, plus check-in.
Passages and standalone questions
Most MCAT questions come in sets based on a passage. Each science section has 10 passages with 4 to 6 questions each, 44 questions in all, plus 15 standalone questions.
CARS is all passages: 9 of them, with 5 to 7 questions each. The passages come from the humanities and social sciences, and you don’t need any outside knowledge to answer them.
Some questions don’t count
Each section includes a few field-test questions that the AAMC is trying out for future exams. They don’t count toward your score, and you can’t tell which ones they are. So treat every question as if it counts.
Is there a passing score?
No. Each section is scored from 118 to 132, with 125 in the middle. The four section scores add up to a total from 472 to 528, with 500 in the middle.
Medical schools set their own expectations, and many publish the scores of the students they admit. Look those up for the schools on your list, and set your practice target from there.
Answer every question
There’s no penalty for wrong or unanswered questions. Your score is based on how many you get right, so make a guess rather than leave anything blank.
Explore
Everything else, in one place
Sources: AAMC and 3 more. Checked October 2026.
- AAMC: What’s on the MCAT Exam? ↗
- AAMC: The MCAT Exam Score Scale ↗
- AAMC: Your Questions Answered: The MCAT Scoring Process ↗
- AAMC: The MCAT Essentials for Testing Year 2027 ↗
Rules and fees can change, so check the official site before your test.