Free USMLE practice test tool
Estimate your NBME score, Step 1 pass readiness, Step 2 CK three-digit score, or UWSA result from wrong answers or percent correct. This free NBME score calculator is designed for fast practice-test interpretation, not official score reporting.
Homepage tool
Convert wrong answers or percent correct into an estimated score range, readiness zone, and practical next step.
Estimated score
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Important use note
This NBME score converter gives an estimate for study planning. It is not affiliated with NBME, USMLE, FSMB, or UWorld, and it should not replace an official score report. Use the result as one readiness signal alongside your official self-assessment report, recent question-bank performance, and exam timeline.
Step 2 CK calculator
For Step 2 CK, this calculator estimates a three-digit score from NBME or UWSA practice-test performance. The current Step 2 CK minimum passing score is 218 for exams administered on or after July 1, 2025, so borderline results should be interpreted with a margin of error.
Select your form, enter wrong answers or percent correct, and compare the result with the Step 2 CK passing threshold. The tool can support NBME 9, NBME 10, NBME 11, NBME 12, NBME 13, NBME 14, NBME 15, and NBME 16.
An estimated score below 218 suggests the result is below the current passing line. Scores near 218 should be treated as borderline because NBME likely score ranges and test-day variation can shift the final result. A higher buffer is usually more useful than a single-point estimate.
Step 1 readiness
Step 1 is now reported as Pass/Fail for exams administered on or after January 26, 2022. This Step 1 NBME score converter should therefore be used mainly to estimate pass readiness and track progress across NBME 25-31, not to promise an official three-digit score.
Use NBME 25, NBME 26, NBME 27, NBME 28, NBME 29, NBME 30, or NBME 31 to estimate whether your practice performance is below, near, or above the passing range.
Instead of focusing only on a historical three-digit estimate, the homepage shows a readiness label: below passing range, borderline, likely pass, or strong pass range. This matches the current Pass/Fail nature of Step 1 better than a single score.
UWorld self assessments
The same homepage tool can also work as a UWSA score calculator. Select UWSA 1, UWSA 2, or UWSA 3, enter your wrong answers or percent correct, and review the estimated Step 2 CK score range.
UWSA results are useful for Step 2 CK planning, but they should be interpreted together with recent NBME scores. If your UWSA and NBME results disagree, use the lower or more recent result when making exam-readiness decisions.
A UWSA score predictor can be helpful, but NBME self-assessments and recent testing conditions often provide a more conservative readiness signal. Use both data points when deciding whether to keep or move an exam date.
Supported assessments
The homepage calculator clearly shows which forms are supported so you can choose the correct conversion mode before entering your result.
| Exam | Supported Forms | Best Use |
|---|---|---|
| Step 1 NBME | NBME 25-31 | Estimate Step 1 pass readiness |
| Step 2 CK NBME | NBME 9-16 | Estimate Step 2 CK three-digit score |
| UWSA | UWSA 1-3 | Compare UWorld self-assessment performance with Step 2 CK readiness |
Score guide
An estimated NBME score is most useful when it is interpreted as a range. A single calculator output can be affected by the form, question mix, timing, review quality, and how close the self-assessment is to the real exam date.
For Step 2 CK, 218 is the current minimum passing score for exams administered on or after July 1, 2025. For Step 1, current score reporting is Pass/Fail, so the calculator emphasizes pass readiness rather than an official three-digit result.
If your estimated score is near the passing line, avoid making a decision from one practice test alone. Review missed questions by system and discipline, compare the result with your recent NBME or UWSA trend, and leave enough time for another self-assessment before test day.
A practice-test estimate can move several points because of form difficulty and test-day variation. Treat the score range and readiness zone as the decision signal, especially when your result is close to the minimum passing score.
Why this tool
This homepage is designed for students who want a quick calculation and a clear interpretation in one place. Instead of sending users through multiple separate tools, it combines NBME Step 1, NBME Step 2 CK, and UWSA score estimates on the same page.
Enter wrong answers or percent correct and get an estimated score without creating an account.
Step 1 results are framed around pass readiness, while Step 2 CK results are framed around the current three-digit score scale.
Each result includes a simple recommendation, such as reviewing weak systems, taking another NBME, or building a final-week study plan.
Official references
The calculator is independent, but the surrounding score interpretation uses official USMLE and NBME context where possible. These references help clarify current score reporting, passing standards, and self-assessment interpretation.
Common questions
No. This NBME score calculator is an independent educational tool. It is not affiliated with NBME, USMLE, FSMB, or UWorld. Always use your official NBME score report as the primary source for exam-readiness decisions.
Use an NBME score converter to estimate a range, not an exact test-day result. The result is most useful when compared with your recent practice-test trend, question-bank performance, and remaining time before the exam.
Yes. The homepage calculator supports NBME Step 2 CK score estimates for NBME 9, NBME 10, NBME 11, NBME 12, NBME 13, NBME 14, NBME 15, and NBME 16.
The current Step 2 CK minimum passing score is 218 for exams administered on or after July 1, 2025. A score near 218 should be treated as borderline because practice-test estimates and test-day performance can vary.
Yes. For Step 1, the calculator focuses on pass readiness and pass probability because Step 1 is reported as Pass/Fail for exams administered on or after January 26, 2022.
The Step 1 section supports NBME 25, NBME 26, NBME 27, NBME 28, NBME 29, NBME 30, and NBME 31. These form names also help users looking for long-tail searches like NBME 31 score converter.
Yes. The homepage includes a UWSA score calculator for UWSA 1, UWSA 2, and UWSA 3. UWSA estimates should be interpreted together with recent NBME results instead of being used as the only readiness signal.
Either input can work if the calculator knows the correct form and total question count. Wrong answers are often easier to enter after reviewing a self-assessment, while percent correct is useful when the report or platform already shows it.