Step 1 · Free Open Resource
Step 1 Free 120 Explanations
The concepts to know before you move on
Take the official Free 120 first. Then use these pages to review: the Step 1 concepts behind each of the four editions, taught in our own words, with what to know, how it works and what not to confuse it with.
April 2026 USMLE Step 1 Free 120
6 blocks of 20 questions online; the printable booklet has 119.
Save it for your last few days before Step 1 as a full dress rehearsal.
January 2024 USMLE Step 1 Free 120
3 blocks of 40 questions online; the printable booklet has 119.
Good for the last two to three weeks of dedicated.
June 2022 USMLE Step 1 Free 120
3 blocks of 40 questions online; the printable booklet has 119.
Good extra practice in the middle of dedicated.
February 2021 ('Old') USMLE Step 1 Free 120
3 blocks of 40 questions online; the printable booklet has 119.
Safe any time in early or middle dedicated.
Official USMLE Practice Links & Study Order
Recommended Sequence During Dedicated
- Early–Mid Dedicated: Take the February 2021 (“Old Free 120”).
- 2–3 Weeks Out: Take the 2022 and 2024 sets, then review the concepts you missed on our pages.
- Final 3–5 Days Before Step 1: Take the April 2026 Interactive Free 120 timed (6 blocks × 20 questions); aim for ≥70% for a comfortable pass margin.
Official NBME / USMLE Launch Links
Always launch the live interactive exam directly from NBME to practice the real Prometric interface, lab-values drawer, and audio auscultation controls:
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Book a free Step 1 strategy callUSMLE® and NBME® are registered trademarks of the Federation of State Medical Boards and the National Board of Medical Examiners, neither of which is affiliated with or endorses IvyMed. These guides reproduce no official exam stems, option lists, images, or audio: every card is original IvyMed teaching grounded in core medical sciences about the concepts tested on each public sample set.