Welcome to Online Medical Tools

Why We Built This

Health information should be accessible to everyone. We created Online Medical Tools to provide free, easy-to-use medical calculators that help you understand key body metrics like BMI, ideal weight, and more.

What You'll Find Here

What started as two calculators has grown into 300+ free medical calculators and reference tools across two dozen specialties, including cardiology, emergency medicine, endocrinology, geriatrics, and mental health. A few places to start:

• BMI Calculator — Quickly calculate your Body Mass Index and understand what it means.
• Ideal Weight Calculator — Find your ideal weight range using multiple established formulas.
• CHA2DS2-VASc and HAS-BLED — Stroke and bleeding risk scores used alongside anticoagulation decisions.
• Child-Pugh Score — Classify chronic liver disease severity.

Browse the full tools directory or search by specialty.

Our Approach

Every tool on this site is:

• Free — No subscriptions, no paywalls, no hidden fees.
• Private — All calculations happen in your browser. We don't store your health data.
• Evidence-based — Our formulas come from peer-reviewed medical literature, and we cite our sources.
• Simple — Clean, fast interfaces that get straight to the point.

A Note on Medical Advice

These tools are for educational purposes only. They are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.

Stay Updated

We regularly add new tools and health content. Bookmark this site and check back often for updates.

Thank you for visiting — we hope these tools are helpful to you.