Free, accurate, and fast clinical tools — designed for real clinical practice worldwide.
RxMedCalc is a free, open-access suite of 27+ clinical calculators and decision-support tools for healthcare professionals worldwide. Every tool is built with Indian clinical guidelines at its core — including those from NCDC, IAP, FOGSI, and international bodies like WHO, NICE, and BTS.
The site covers emergency scoring (CURB-65, NEWS2, GCS), paediatrics (growth charts, milestones, vaccine schedules), obstetrics (due date, ObsCalc), metabolic tools (eGFR, HbA1c, Child-Pugh), infectious disease (rabies PEP, ARV dose), and occupational health (spirometry, biomedical waste guide).
These tools are built and maintained by a practicing Indian physician. The motivation is simple: quick-access, mobile-friendly clinical tools that work without internet login, without ads cluttering the experience, and without the complexity of proprietary hospital software.
Every calculator has been reviewed against the referenced guidelines before publication. Clinical accuracy is non-negotiable.
Every tool on RxMedCalc is built against a cited, published guideline. We don't invent cutoffs.
NCDC · IAP · FOGSI · NHP · BMW Rules 2016 · Jindal Spirometry Reference Values
WHO · NICE · BTS · CKD-EPI 2021 · AKIN/KDIGO · RCOG · AAP · ADA · RSSDI
Anonymous usage analytics are collected via Umami — a privacy-respecting, cookie-free, GDPR-compliant analytics platform — to help understand which tools are most useful. This data is never sold or shared.
For full details, see our Privacy Policy.
All tools on this website are intended for use by qualified healthcare professionals as clinical decision-support aids only. They do not replace clinical judgement, patient history, or examination. Always verify calculations independently and apply them in the context of the individual patient. The developers accept no liability for clinical decisions made using these tools.
Read the full Medical Disclaimer →
27+ free tools covering emergency, pediatrics, obstetrics, metabolic & more — no login, no data stored.
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