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USMLE blog

USMLE Prep Articles

Source-checked writing on Step 1, Step 2 CK, Step 3, NBME score interpretation, and study planning. Drafts stay out of search until reviewed.

Reviewed articles identify their source-check date and link to the primary material used. Internal model assumptions remain labelled separately in the public methodology and changelog.

How Many Questions Are on Step 1? 2026 Format, Length and Breaks
Step 1 TipsFeatured

How Many Questions Are on Step 1? 2026 Format, Length and Breaks

Step 1 is an 8-hour exam of fourteen 30-minute blocks with up to 20 questions each (from May 14, 2026). See the old vs new format, time per question, breaks, and what the exam covers.

NBMEcalc Editorial Team·Sources checked6 min read
Step 3 Exam Format: How Long Is Step 3 and How Many Questions?
Study Plans

Step 3 Exam Format: How Long Is Step 3 and How Many Questions?

Step 3 is a two-day exam: 232 questions on Day 1 (about 7 hours) and 180 questions plus 13–14 CCS cases on Day 2 (about 9 hours). See the block layout, breaks, scoring, and what each day tests.

NBMEcalc Editorial Team·7 minSources checked 2026-10-25
NBME CBSE and CCSE: What They Are and How to Read Your Score
Score Conversion

NBME CBSE and CCSE: What They Are and How to Read Your Score

The CBSE is NBME's school-administered Step 1-style exam; the CCSE is its Step 2 CK counterpart. See how each is scored, why old CBSE conversion charts no longer apply, and what the scores mean for readiness.

NBMEcalc Editorial Team·7 minSources checked 2026-10-25
NBME Shelf Exams Explained: Length, Scoring, and Percentiles
Step 2 Tips

NBME Shelf Exams Explained: Length, Scoring, and Percentiles

NBME shelf exams are 110-question clerkship subject exams scored as equated percent correct. See each exam's length, how scores and percentiles work, whether shelves are curved, and when results arrive.

NBMEcalc Editorial Team·7 minSources checked 2026-10-25
USMLE Score Report vs Transcript: How to Read and Send Yours
Score Conversion

USMLE Score Report vs Transcript: How to Read and Send Yours

Your USMLE score report is for you; programs and boards need your transcript. See what each shows, how long the score report stays online, and how to send your transcript to ERAS through FSMB ($70 per cycle).

NBMEcalc Editorial Team·7 minSources checked 2026-10-25
How Many Questions Are on Step 2 CK? 2026 Format and Unscored Items
Step 2 Tips

How Many Questions Are on Step 2 CK? 2026 Format and Unscored Items

Step 2 CK now has sixteen 30-minute blocks of up to 20 questions (from May 7, 2026). See the old vs new format, time per question, break time, and what USMLE says about unscored items.

NBMEcalc Editorial Team·6 minSources checked 2026-09-29
Step 3 CCS Cases: How Many, How They're Scored, and How to Practice
Study Plans

Step 3 CCS Cases: How Many, How They're Scored, and How to Practice

Step 3 has 13–14 CCS cases on Day 2, each capped at 10 or 20 minutes of real time. See how USMLE scores them, the six official practice cases, and a case-by-case review checklist.

NBMEcalc Editorial Team·11 minSources checked 2026-10-25
Step 2 CK High-Yield Priorities from the Official Content Outline
Step 2 Tips

Step 2 CK High-Yield Priorities from the Official Content Outline

Build a Step 2 CK review order from current USMLE system and physician-task ranges instead of an unverifiable list of recalled questions.

NBMEcalc Editorial Team·8 minSources checked 2026-08-09
AMBOSS vs UWorld for Step 2 CK: A Source-Checked Decision Guide
Study Plans

AMBOSS vs UWorld for Step 2 CK: A Source-Checked Decision Guide

Compare the Step 2 CK features each product currently documents, then choose by study workflow, remaining time, and the resources you already own.

NBMEcalc Editorial Team·9 minSources checked 2026-08-09
What to Do the Night Before Your Step Exam
Study Plans

What to Do the Night Before Your Step Exam

A practical USMLE test-day checklist built around the official permit, identification, security, belongings, and break rules.

NBMEcalc Editorial Team·6 minSources checked 2026-08-09
Step 2 CK Subject Weighting: What the Official Outline Says
Step 2 Tips

Step 2 CK Subject Weighting: What the Official Outline Says

Use the official USMLE system, physician-task, and clinical-science ranges to prioritize Step 2 CK review without inventing a fixed topic list.

NBMEcalc Editorial Team·8 minSources checked 2026-08-09
How to Read Your NBME Score Report (Without Panicking)
Score Conversion

How to Read Your NBME Score Report (Without Panicking)

A source-backed guide to reading current CBSSA and CCSSA score reports without mixing Step 1 EPC, Step 2 CK total scores, score ranges, or pass probabilities.

NBMEcalc Editorial Team·7 min