USMLE Step 1 guide.
Understand the USMLE Step 1 format, eligibility, scoring, content, and a practical preparation strategy.
- Questions
- Up to 280 multiple-choice questions
- Testing time
- One day, about 8 hours
- Blocks
- 14 blocks × 30 minutes (≤20 questions each)
- Score reported as
- Pass / Fail only
- Passing standard
- Pass / Fail only (USMLE lists 196 on the legacy 3-digit scale)
What Step 1 measures
USMLE Step 1 measures whether you can understand and apply foundational science concepts to medicine. Questions integrate normal processes, disease mechanisms, pharmacology, pathology, behavioral science, biostatistics, and ethics through clinically framed problems.
The official content outline is organized by organ system and physician task. Use it as a coverage map, then let practice data show where your knowledge and reasoning need work.
Eligibility
You must be an eligible student or graduate of an LCME-accredited MD program, a COCA-accredited DO program, or an eligible medical school outside the United States listed in the World Directory of Medical Schools with the required ECFMG eligibility status. Eligibility must be maintained when you apply and on test day.
Format and test day
For administrations using the testing software introduced on May 14, 2026, Step 1 is a one-day, approximately eight-hour exam at a Prometric test center.
| Element | What to expect |
|---|---|
| Question type | Single-best-answer multiple-choice questions, most built around a clinical or experimental vignette |
| Blocks | Fourteen 30-minute blocks, each with no more than 20 questions |
| Total questions | No more than 280 |
| Test day length | About 8 hours, including the tutorial and break time |
| Unscored items | A number of questions are pretest items that do not count toward your result; you cannot tell which ones they are, so give every question full effort |
Expect content from anatomy, behavioral sciences, biochemistry and nutrition, genetics, immunology, microbiology, pathology, pharmacology, and physiology, plus biostatistics, epidemiology, and communication and ethics. The interface, break allocation, and tutorial can change, so rehearse with the official practice materials that match your test date.
Scoring and results
Step 1 has been reported as Pass or Fail since January 26, 2022. No three-digit score appears on your score report or transcript. USMLE currently lists 196 as the passing standard on the legacy three-digit scale and says future reviews will not be reported numerically.
Results are usually available within four weeks, but USMLE advises allowing at least eight weeks before any deadline that depends on your result. A passing Step 1 report shows only Pass. A failing report includes a visual showing the distance from the passing standard and content-area feedback to help guide a new study plan.
Score scale and ranges
Because Step 1 is pass/fail, there is no public score range to aim for. What matters is a comfortable margin above the passing standard. On practice self-assessments that predict a three-digit equivalent, many advisers suggest testing only once your predicted scores sit consistently above the pass line rather than just at it, because every measurement carries some error.
USMLE notes that examinees typically need to answer roughly 60 percent of items correctly to pass, and there is no quota: no set percentage of examinees is required to fail.
How to apply
Students and graduates of U.S. MD and DO programs apply through NBME/MyUSMLE. Eligible students and graduates of medical schools outside the United States apply for all three Step exams through FSMB following the 2026 service transition. Always follow the current Bulletin of Information.
Build a preparation plan
Start with a diagnostic assessment, build an organ-system plan, and progress from untimed learning to timed mixed blocks. Review mechanisms and the reasoning behind every option. Use official sample materials to practice the actual interface.
- Start with the official content outline and a baseline assessment.
- Connect physiology, pathology, microbiology, and pharmacology by organ system.
- Use active recall and spaced review for facts that must remain available.
- Classify every missed question as knowledge, reasoning, reading, or timing.
- Move gradually toward timed mixed blocks and schedule recovery days.
Test day, results and transcripts
These rules apply to every Step. Read them before you schedule.
Related preparation articles
Timelines, schedules and requirements from the study journal.