NBME 14 to Step 2 CK conversion
Based on 1,559 real score reports that included an NBME 14 result. The actual Step 2 score was about 8 points higher than the NBME 14 score, on average. Used alone, an NBME 14 score predicts the real result with a typical error of about ±5.9 points. Combining multiple tests usually reduces the error.
Each dot is one real report: their NBME 14 result against the Step 2 CK score they went on to get. Hover or tap a dot to see that person's full test list. r = 0.71, n = 1,521.
The calculator assumes the test was taken about 9 days before the exam, the typical timing in the underlying reports. Taking it closer to test day shifts the prediction; the main predictor uses your exact timing and every other test you have taken.
Common questions
Does NBME 14 underpredict your Step 2 score?
In the collected score reports, NBME 14 underpredicted the actual score by about 8 points on average. The conversion accounts for that average difference.
How accurate is NBME 14 alone at predicting Step 2?
A single NBME 14 score predicts the real result with a typical error of about ±5.9 points. The main predictor combines several tests, which usually reduces the error.
How do I convert my NBME 14 percent correct to a score?
Enter your raw percent correct above. NBME 14 has 200 questions, so each one is worth about half a percent; the converter maps your percent to the 3-digit NBME 14 score (about 2.2 points per percent, calibrated on real reports and cross-checked against published conversions) and then to a predicted Step 2 CK score.
Convert NBME 14 % correct to a 3-digit score
Took NBME 14 offline and only have a raw percent correct? Estimate your 3-digit form score below — it also fills into the calculator at the top of the page, so you still get a Step 2 prediction.
Calibrated on real reports that listed both a percent and a 3-digit NBME 14 score, blended with published conversions (typically within about ±3 points). Convert a different form →
Combine your scores
Combine your practice scores and test dates in the full predictor. Open the predictor →
Charts & guides
Browse the score analyses, study-data pages, and assessment converters.