Why we built
MAP Calculator
Mean Arterial Pressure is one of the most important numbers in clinical medicine — yet calculating it quickly and accurately in a busy clinical environment has always required a mental shortcut or a buried formula on a phone.
We built MAP Calculator to solve that. A clean, fast, clinically accurate tool that works on any device, requires no login, and puts the result front and center — alongside the context a clinician actually needs.
Designed by a world-leading cardiologist with over three decades of cardiovascular research, every element of this calculator reflects real clinical thinking: the reference ranges, the critical thresholds, the language. Nothing is approximate or generic.
Our mission is simple: make precision clinical tools universally accessible — from the busiest ICU to a medical student studying at midnight.
-
Clinical Accuracy First Every formula, range, and threshold is grounded in current evidence-based guidelines
-
Speed at the Point of Care Instant results with zero friction — no sign-up, no ads, no distractions
-
Universal Access Free forever, mobile-first, and available to anyone anywhere in the world
-
Expert-Backed Built on decades of cardiovascular research and real-world clinical experience
-
Designed for Humans Intuitive on any device — from a laptop in rounds to a phone in the ED
Meet Dr. Eric J. Topol
One of the world's most influential cardiologists, Dr. Topol brings unmatched clinical expertise and a lifelong commitment to democratizing healthcare through technology.
Making clinical precision
universally accessible
Evidence-Based Tools
Every calculator, reference range, and clinical threshold we publish is grounded in current peer-reviewed literature and validated guidelines — never approximated.
Global Accessibility
Clinical excellence shouldn't be limited by geography or resources. Our tools are free, fast, and work on any device — from a flagship hospital to a rural clinic.
Medical Education
We support the next generation of clinicians with clear explanations, reference tables, and contextual guidance alongside every calculation.
Privacy First
No personal health data is stored or transmitted. All calculations happen locally in your browser — your clinical data stays yours.
Point-of-Care Speed
Designed for real clinical environments — instant results, zero load time, no account required. There when you need it most.
Continuously Evolving
We're expanding our suite of cardiovascular and hemodynamic calculators, guided by clinician feedback and the latest research.