MCAT Percentile Calculator

The MCAT reports each of its four sections on a 118 to 132 scaled score in 1-point increments, and the four section scores sum to a total between 472 and 528. The four sections are Chemical and Physical Foundations of Biological Systems (Chem/Phys, often abbreviated CP), Critical Analysis and Reasoning Skills (CARS), Biological and Biochemical Foundations of Living Systems (Bio/Biochem, BB), and Psychological, Social, and Biological Foundations of Behavior (Psych/Soc, PSS). The 125 midpoint on each section corresponds to the 50th percentile by design, so a balanced 500 total is exactly average. The scaling is the same across all administrations because AAMC equates each form before reporting scores.

CARS gets weighted heavily by admissions committees in practice, even though it counts the same as any other section toward the 472 to 528 total. There are three reasons. First, CARS has no content to memorize, so a high CARS score is read as a signal of underlying reading and reasoning ability rather than recent prep. Second, CARS is the hardest section to move with prep: most students gain only one to three scaled points across a full prep cycle, while gains in the science sections often run five to eight points. Third, several top programs (notably some Texas state MD schools and a handful of others) publish minimum CARS cutoffs that screen applicants before any other section is read. A 128+ CARS opens doors that a 128+ in Chem/Phys does not.

AAMC publishes the official percentile concordance once a year, in May, based on the three most recent test cycles combined. Using a three-year window smooths out year-to-year drift in the test taker pool (international applicants, gap-year cohorts, post-pandemic surges) so the published percentile is stable across reporting cycles. The practical implication: the same scaled score can shift one or two percentile points up or down each May without your underlying performance changing. For schools that screen on percentile rather than scaled score, applying in May to June (just after the new table is published) versus November to December can put your application in slightly different bands. Always look at the table that AAMC publishes with your specific score report when reporting an exact percentile.

Allopathic (MD) programs report a national matriculant median MCAT of about 512 and median GPA of about 3.7, with the top 20 schools landing closer to 519 MCAT and 3.85 GPA. Osteopathic (DO) programs report a matriculant median MCAT of about 503 to 505 and median GPA of about 3.5 to 3.6. The lower DO numbers do not mean lower clinical quality. Both pathways lead to the same residency match and licensure. They reflect a different applicant pool and a different admissions philosophy: DO programs weight osteopathic principles, demonstrated shadowing of a DO physician, and a holistic file alongside the academic profile. Applicants targeting MD only with a 502 or below typically have a stronger application package by adding DO schools to the list.

A 512 with sections 128 / 128 / 128 / 128 reads very differently from a 512 with sections 132 / 121 / 130 / 129 to most admissions committees. Many schools screen applications for any individual section score below a threshold (commonly 124 or 125) even when the total is competitive, on the theory that a single section gap predicts trouble with the corresponding parts of the medical school curriculum. CARS scores below 125 trigger screens at several MD programs because reading-heavy preclinical coursework is the most common stumbling block. Chem/Phys and Bio/Biochem scores below 125 trigger screens at programs with quantitatively dense first-year curricula. The takeaway: a balanced 510 often beats an unbalanced 514 for selective programs, and a single 121 can knock an otherwise strong file out of holistic review before it ever reaches a human reader.