USMLE mock tests

United States Medical Licensing Examination

Free practice tests

About USMLE

The USMLE is the licensing examination sequence used by state medical boards in the United States. It has three Steps. Step 1 tests the sciences basic to medicine. Step 2 Clinical Knowledge (CK) tests clinical science for supervised patient care. Step 3 tests whether a physician can practise without supervision, and it is the only Step with computer-based case simulations.

From 14 May 2026, Step 1 is one day and one 8-hour session: fourteen blocks of 30 minutes, up to 20 questions in a block and up to 280 questions in the day, plus a minimum of 55 minutes of break time and a 5-minute optional tutorial. Time you do not use in the tutorial or in a block is added to the break. You can review items only inside the open block.

Step 1 results for exams taken on or after 26 January 2022 are reported only as pass or fail. The passing standard on the three-digit scale is 196, and that number is not printed on the score report. There is no single published table from the number correct to a three-digit score. The bulletin says the percent correct needed to pass varies by form, and that examinees typically must answer about 60 percent correctly.

From 7 May 2026, Step 2 CK is one 9-hour day: sixteen blocks of 30 minutes. The Step 2 CK page says a block will not exceed 20 questions and the day will not exceed 318. A software notice lists 316 questions and 18 to 20 per block. The minimum passing score is 218 on the three-digit scale for exams on or after 1 July 2025. This site does not include a Step 2 CK practice test.

Step 3 is two days, on the software in place from 10 March 2026. Day 1 (Foundations of Independent Practice) is about 7 hours: 232 multiple-choice items in 12 blocks of 30 minutes (18 to 20 items), with 55 minutes of break time and a 5-minute optional tutorial. Day 2 (Advanced Clinical Medicine) is about 9 hours: 180 multiple-choice items in 9 blocks of 20, then 13 to 14 case simulations of at most 10 or 20 minutes of real time, a 6-minute case tutorial, and at least 45 minutes of break time. The minimum passing score is 200 for exams on or after 1 January 2024. This site does not include a Step 3 practice test.

USMLE Step 1 exam pattern

8 hours, of which 7 hours are the fourteen blocks

USMLE Step 2 CK exam pattern

9 hours

USMLE Step 3 exam pattern

About 7 hours on day 1 and about 9 hours on day 2