The MCAT (Medical College Admission Test) is a standardized exam required for admission to medical school in the United States and Canada. It tests your knowledge of science, critical thinking, and problem-solving to help admissions committees predict whether you can handle the demands of a medical education. Nearly every MD and DO program in North America requires it as part of the application.
Who Needs to Take It
If you’re applying to an MD (allopathic) or DO (osteopathic) medical program, you will almost certainly need an MCAT score. The exam is also the standard admissions test for podiatric medical schools, where most of the eleven U.S. programs accept MCAT scores (several also accept the DAT, or Dental Admission Test, as an alternative). Some veterinary and other health-related programs may accept MCAT scores as well, though those fields typically have their own dedicated exams.
MCAT scores expire. Podiatric programs, for example, won’t accept scores older than three years. MD and DO programs set their own policies, but most consider scores valid for two to three years from the test date.
What the Exam Actually Tests
The MCAT has four scored sections, each designed to measure a different slice of the knowledge and reasoning you’ll need in medical school:
- Chemical and Physical Foundations of Biological Systems: General chemistry, organic chemistry, physics, and biochemistry, all applied to how biological systems work.
- Biological and Biochemical Foundations of Living Systems: Biology and biochemistry, with a focus on the processes that keep living organisms functioning.
- Psychological, Social, and Biological Foundations of Behavior: Psychology, sociology, and biology as they relate to how people think, behave, and interact. This section reflects the growing emphasis in medicine on understanding patients as whole people, not just collections of symptoms.
- Critical Analysis and Reasoning Skills (CARS): Reading comprehension passages drawn from the humanities and social sciences. No outside science knowledge is needed. It tests whether you can read complex material and draw sound conclusions from it.
Every question is multiple choice. The exam doesn’t just test memorization. Passages describe experiments, scenarios, or arguments, and you need to interpret data, identify flaws in reasoning, or apply concepts to unfamiliar situations.
How Scoring Works
Each of the four sections is scored on a scale from 118 to 132, with 125 as the midpoint. The four section scores combine into a total score ranging from 472 to 528, with 500 as the midpoint. A score of 500 means you performed right at the median of all test-takers.
For context, students who matriculated into DO programs in 2024 had mean section scores around 125 to 127, with the highest average in the psychology and sociology section (about 126.8) and the lowest in the CARS section (about 125.0). Competitive MD programs generally expect higher totals, with many matriculants scoring in the 510 to 520 range depending on the school.
Does the MCAT Actually Predict Medical School Success?
This is a fair question, and the data says yes. A 10-year study conducted by the AAMC across multiple medical schools found that MCAT scores strongly predict performance in both the classroom portion of medical school and the clinical rotations that follow. Scores also correlate with performance on the USMLE Step 1 and Step 2 exams, the national licensing tests that medical students take during and after school.
The correlation between MCAT total scores and Step 2 Clinical Knowledge scores was 0.56, which is considered a large effect in the social sciences. Notably, MCAT scores were a better predictor of board exam performance than undergraduate GPA alone (which correlated at 0.50). Combining MCAT scores and GPA together gave the strongest prediction, at 0.58. In practical terms, this means the MCAT captures something about your readiness for medical training that grades alone don’t fully reflect.
How Long the Test Takes
The MCAT is a full-day commitment. Actual testing time is 6 hours and 15 minutes, but total seat time stretches to about 7 hours and 27 minutes once you factor in breaks and a tutorial. You get a 10-minute break between most sections and a 30-minute lunch break after the CARS section. The AAMC recommends arriving at least 30 minutes before your scheduled start time, which is typically 8:00 a.m.
Cost and Financial Assistance
Standard registration costs $355. If you’re testing outside the U.S., Canada, or U.S. territories, an additional $130 international fee applies. For students with significant financial constraints, the AAMC offers a Fee Assistance Program that reduces the registration fee to $145 and includes free official prep materials. Eligibility is based on financial need, with details available through the AAMC’s program website.
When You Can Take It
The MCAT is offered from January through September at testing centers across the United States. The 2026 calendar includes dates spread across those months, with the heaviest concentration in May and June, when most applicants are finishing their spring semester and preparing to submit applications. Multiple dates are available each month, giving you flexibility to choose a time that fits your preparation schedule. Most pre-med students take the exam in the spring or summer of the year they plan to apply, though some take it earlier to leave room for a retake if needed.