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Medical Calculators

Medical Calculators

Clinical calculators assist in converting measurements and dosages, determining risk, and assessing patients. We have several top rated apps, software, and databases that will assist you in point-of-care decision making and allow you to use calculators in a range of specialties.


UpToDate: This resource offers web-based access. It allows you to enter values in commonly used formulas to obtain numerical data or to estimate the severity of a condition. Please note, UpToDate is available to NYMC students only. Faculty may contact Marie Ascher at 914-594-4207 or marie_ascher@nymc.edu to discuss access.

Calculate by QxMD: This free, online resource is also available as an app. The calculators are organized according to specialty, and can be set to the imperial system of measurement or international system of units (SI). Save favorite and recently used calculators by creating an account, which can also be linked to your Read by QxMD account.

MDCalc: A publicly accessible online tool that is also available as an app. Search for calculators by keyword, calculator function, disease, specialty, chief complaint, or organ system. Discover the most popularly used calculators, updates, and recently added calculators.

ClinicalKey App Icon

ClinicalKey: From the Clinical Calculators link below the search box, you can access 300+ drug, clinical criteria/decision tree, medical, and unit conversion calculators. Available on the web and coming soon to the app.

DynaMed App Icon

DynaMed: From the calculator tab at the top of the page, you can access statistics calculators and decision trees, as well as the ability to search by medical specialty from Anesthesia to Rheumatology.

Lexicomp: From the calculators tab, browse the alphabetical list of clinical calculators, from conversions, infusions, to renal function estimation. Lexicomp provides a wide variety of calculators for pharmacokinetics and toxicology.

The AMA Manual of Style provides a conversion calculator for easily switching between SI and metric quantities. The calculator provides conversion between measures (such as length, area, mass and volume) as well as for selected laboratory tests, with reference range and convergence factors.