NBMEcalc

NBMEcalc is an independent study-planning tool for medical students preparing for USMLE exams. Its browser calculator combines compatible practice-exam observations, including NBME CCSSA, UWSA, Free 120 and AMBOSS inputs, into an estimated score and a transparent planning range. Students can compare results from different sources rather than relying on a single practice test. The site also provides dedicated score-conversion pages and explanations for individual assessments, including CMS forms. The core calculator is available without registration. Optional paid reports add a more detailed planning view; the free estimate remains available for students who only need a quick comparison. NBMEcalc also maintains open-source developer assets, including score-conversion libraries, an MCP service and worksheet tools for editors. These support educational integrations and local workflows. Estimates are intended for study planning, carry uncertainty, and are not official NBME or USMLE results or a guarantee of exam performance.