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Clinical tools for the exam and the wards.
The calculators and references you reach for during a Qbank block — and again on rotations. Free for everyone, part of the usmle.tech study cockpit.
Clinical Calculators
15 high-yield calculators — anion gap, A–a gradient, Cockcroft-Gault, CHA₂DS₂-VASc, Wells, CURB-65, MELD-Na, GCS and more. Tested on the exam, used on the wards.
Open →Reference Lab Values
The USMLE normal-range sheet, searchable — electrolytes, CBC, LFTs, ABG, coags, CSF. Bookmark it for the Qbank.
Open →Exam Countdown & Pacing
Set your exam date and get days remaining plus the questions/day you need to finish the bank in time.
Open →Resource Hub
A curated shortlist of the resources that actually matter — official practice, NBME self-assessments, and the best free references.
Open →Educational reference only — always confirm against your institution's values and clinical judgment. Not for direct patient-care decisions.