Keep the form set to NBME 9
This page opens with Step 2 CK, NBME, and Form 9 already selected. Keeping the correct form matters because each self-assessment has its own curve and question count.
NBME 9 Step 2 CK tool
Convert NBME 9 wrong answers or percent correct into an estimated Step 2 CK score range. The form is preset to NBME 9 so you can calculate first and then interpret the result carefully.
NBME 9 calculator
Enter your missed-question count or percent correct from NBME 9 to estimate a three-digit Step 2 CK score, score range, and readiness zone.
Estimated Step 2 CK score
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Important limitation
This independent NBME 9 score conversion tool uses a practical conversion model for study planning. It is not affiliated with NBME, USMLE, FSMB, ECFMG, or UWorld, and it should not replace official reports or school guidance.
How to use it
Students searching for NBME 9 score conversion usually want a form-specific calculator, a fast wrong-answer estimate, and a realistic way to read the score range without treating one older form as a final prediction.
This page opens with Step 2 CK, NBME, and Form 9 already selected. Keeping the correct form matters because each self-assessment has its own curve and question count.
If your review notes show missed questions, enter that count. If you only know your percent correct, switch the input mode and the tool will convert it using the 200-question NBME 9 total.
The displayed score is paired with a range because independent online conversion models cannot reproduce every official scoring detail. Treat a narrow pass margin as a prompt for another timed assessment.
For exams administered on or after July 1, 2025, the current Step 2 CK minimum passing score is 218. Results near that line deserve extra caution.
NBME 9 is often used earlier than newer forms, so compare it with NBME 10-16, UWSA, Free 120, and recent timed question blocks. A consistent trend is stronger than one isolated conversion.
After calculating, tag missed questions by medicine, surgery, pediatrics, OB/GYN, psychiatry, ethics, and biostatistics so the estimate becomes an actionable study plan.
A form-specific page helps students who already know they took NBME 9. Use the broader Step 2 CK calculator only when you need to switch among multiple forms.
Examples and edge cases
Use these examples to understand the input and output before relying on a score estimate.
Entering 45 wrong answers on NBME 9 produces an estimated Step 2 CK score around the upper 240s with a range around it. That is usually above the passing line, but timing and trend still matter.
For NBME 9, 78% correct is treated as about 44 missed questions out of 200 before conversion. Percent mode is helpful when your notes do not include an exact missed-question count.
If the estimate or range overlaps 218, avoid using one conversion as a scheduling decision. Review weak systems and confirm with another recent NBME or UWSA.
NBME 9 can still be useful for trend review, but newer timed forms taken closer to test day may be more relevant for final scheduling decisions.
Comparison table
Use this table to choose the correct input mode and decide when another calculator page is a better fit.
| Use case | Input | Best next step |
|---|---|---|
| NBME 9 wrong-answer conversion | 0-200 missed questions | Use this page when your review screen shows the number of missed items. |
| NBME 9 percent correct | 0-100 percent correct | Use percent mode when you only have a percentage and want a fast Step 2 CK estimate. |
| Other Step 2 CK NBME forms | NBME 10, 11, 12, 13, 14, 15, or 16 | Use the broader Step 2 CK calculator when the assessment is not NBME 9. |
| UWSA or Free 120 comparison | UWSA 1-3 or Free 120 | Compare another assessment family before changing your exam date. |
Official context
These references support the score-reporting and self-assessment context around this independent calculator.
Related tools
Use these pages to compare NBME 9 with newer forms, broader Step 2 CK estimates, UWSA, and Free 120 readiness signals.
NBME 9 FAQ
No. It is an independent educational estimate and is not affiliated with NBME or USMLE. Always treat official score reports as the primary source.
Yes. Switch to percent correct and enter a value from 0 to 100. The tool converts that percentage into an estimated missed-question count before calculating.
This calculator uses a 200-question total for NBME 9, which lets it convert percent correct into wrong answers.
For Step 2 CK exams administered on or after July 1, 2025, the current minimum passing score is 218.
Use the form you actually completed. NBME 9 can support trend review, but newer timed forms taken closer to test day may be more useful for final scheduling.
A range reflects the uncertainty of online conversion models, form difficulty, and test-day variation. Use it to guide decisions instead of relying on one point estimate.
Review missed questions by system and discipline, build a score buffer, and confirm readiness with another recent NBME or UWSA before making a final exam-date decision.
Use this page when your result is specifically from Form 9 and you want the calculator preset. Use the broader Step 2 CK calculator when comparing multiple forms.