Full-length · 4 sections · free
Free MCAT practice test
A complete MCAT practice exam: 230 original questions on the real timing. No sign-up. Every answer choice explained.
How 528 Lab Helps you score higher
Original Questions
Every passage and question is written for 528 Lab and checked against the web for overlap. Nobody has seen them before.
Real Test-Day Timing
Four sections in the real order, with the real question counts and section clocks, so your pacing practice transfers.
Every Choice Explained
Finish a section and every answer comes with a reason, including why each wrong choice is wrong.
Honest Score Ranges
Your estimate comes with a range and a published method, never a single number we can't back up.
Practice questions Written from scratch
Most questions come in passage-based sets, as on the real exam; the three science sections also have standalone questions. CARS passages are new essays, so nobody has read them before.
Finish a section and you get the answer key, an explanation for each question and a note on every wrong choice.
Read the section guides →Score estimates Reported as a range
The AAMC does not publish its raw-to-scaled tables, and they change from form to form. We take the median of three public estimators and show a range, so an estimate never looks more certain than it is.
Total score
510
Estimated range
508–512
| C/P · Chemical & Physical | 127 | |
|---|---|---|
| CARS · Critical Analysis & Reasoning | 128 | |
| B/B · Biological & Biochemical | 128 | |
| P/S · Psychological & Social | 127 |
Illustrative sample, not a real result. Range = median of three public estimators.
230
Original questions
39
Passages
6 h 15 min
Testing time
4
Sections, test-day order
$0
No account needed
The exam Section by section
Same sections, order and timing as test day. Your scores stay in this browser.
Full-length 1 · exam overview
Four sections.
Test-day order.
Sit all four sections in test-day order, or start with the one you want to understand better.
Finish all four to see your estimated total.
Take all four sections- 01C/PChemical and Physical Foundations of Biological Systems59 q · 95 min59 questions95 min
- 02CARSCritical Analysis and Reasoning Skills53 q · 90 min53 questions90 min
- 03B/BBiological and Biochemical Foundations of Living Systems59 q · 95 min59 questions95 min
- 04P/SPsychological, Social, and Biological Foundations of Behavior59 q · 95 min59 questions95 min
Free tools Keep your next step in view
What's inside MCAT practice questions in this test
| Section | Questions | Passages / discrete | Time | What the questions cover |
|---|---|---|---|---|
| C/P | 59 | 10 / 15 | 95 min | General Chemistry 17 · Physics 15 · Biochemistry 15 · Organic Chemistry 9 · Biology 3 |
| CARS | 53 | 9 / 0 | 90 min | Reasoning Beyond the Text 21 · Foundations of Comprehension 16 · Reasoning Within the Text 16 |
| B/B | 59 | 10 / 15 | 95 min | Biology 36 · Biochemistry 16 · Organic Chemistry 4 · General Chemistry 3 |
| P/S | 59 | 10 / 15 | 95 min | Psychology 38 · Sociology 18 · Biology 3 |
Before you study Using it as an MCAT diagnostic test
A diagnostic is a full-length you take before studying, to see where you start. It works best when you treat it like the real thing.
- 01Take it before content review, timed, in one sitting if you can (6 h 15 min of testing time).
- 02Don't look anything up. A diagnostic only helps if it shows what you know today.
- 03Read your four section scores side by side; the lowest one is usually where your first weeks go.
- 04Sort every missed question: content you never learned, content you forgot, or a reading and timing problem.
- 05Treat the estimate as a starting point, not a prediction of test day.
- Turning that result into a plan is the next step: MCAT prep with free full-length practice tests.
Questions About the practice test
Something else? Write to us.
Is this MCAT practice test really free?
Yes. The full-length is free during the beta and needs no account or sign-up. Paid plans will come later, and beta testers get founding-member pricing.
How long is the full-length MCAT practice exam?
Four sections and 230 questions: C/P 95 min, CARS 90 min, B/B 95 min, P/S 95 min. That is 6 h 15 min of testing time, the same section order and timing as the real exam.
Is it a full MCAT mock test, like test day?
It follows the real exam's section order, question counts and section timing, and you can sit all four sections in one go. It is not an official AAMC exam, and it does not yet include the periodic table or the highlight tool.
Can I use it as an MCAT diagnostic test?
Yes. Take it timed before you start content review, then use the section scores and the questions you missed to decide where your study time goes first.
How is the score estimated?
The AAMC does not publish its raw-to-scaled conversion. We use the median of three public estimators and show your total with a range, not a single number we can't back up.
Ready when you are.
Start with one section or sit the full 6 h 15 min.