Free Medical Tools
Free, evidence-based medical tools. Use validated calculators, drug interaction checkers, comparison tables, and reference lookups — all built on published clinical guidelines and pharmacology references.
📊 Medical Calculators
16 validated calculators including BMI, pregnancy due date, FINDRISC, CHA₂DS₂-VASc, Wells DVT, ovulation, pediatric drug dosing.
Browse calculators →⚠️ Drug Interactions
995 clinically referenced drug-pair interactions with severity ratings, mechanism of action, and clinical recommendations.
Check interactions →🔍 Reference Lookups
Quick reference: pregnancy drug safety (FDA categories), vaccination schedule by age, travel vaccine guide by destination.
Browse lookups →⚖️ Medicine Comparisons
1096 side-by-side comparisons of medicines in the same therapeutic class — mechanism, dosing, when to choose which.
Compare medicines →💊 Drug Classes
1223 therapeutic class hubs (statins, GLP-1 agonists, SSRIs, ACE inhibitors, etc.) — comparison tables and class-wide context.
Browse classes →📚 Medicine Reference
Comprehensive medicine database with dosing, side effects, interactions, and FDA/EMA regulatory references.
Browse medicines →Why we built these tools
Most medical websites publish articles. Few publish working tools. We believe medicine information should be actionable, not just readable — so you can plug in your numbers, look up what you need, and get a real answer grounded in published evidence.
Every calculator uses validated published algorithms (e.g., FINDRISC from Lindström & Tuomilehto 2003, CHA₂DS₂-VASc from Lip et al. 2010). Every interaction page references documented pharmacology. Every comparison links to the substance pages with detailed monographs.
How to use these tools safely
- Educational reference, not medical advice. These tools provide information; they do not replace clinical judgment.
- Discuss results with your prescriber before changing medications, doses, or treatment plans.
- For emergencies, contact your local emergency services — these tools are not for time-critical decisions.
- Verify independently when stakes are high (pregnancy, pediatric dosing, drug interactions in complex cases).
All tools are free, ad-free, and no registration required. Source code and methodology are documented in our editorial standards.
Frequently asked questions
Are these tools free?
Yes. All tools on iMedic are free, ad-free, and require no registration. Use them as much as you need.
Are the calculators clinically validated?
Where applicable, yes. We use published validated algorithms from peer-reviewed clinical literature. Each calculator page cites the source publication and explains the methodology.
Can I use these tools instead of seeing a doctor?
No. These tools are educational and informational. They do not replace clinical evaluation, diagnosis, or treatment by a qualified healthcare provider. Use them to understand context and prepare for conversations with your clinician.
Do you store the data I enter?
No. All calculations happen in your browser. Nothing is sent to our servers when you use a calculator. Your inputs are private to your device.
How often are tools updated?
We review tools when underlying clinical guidelines change (typically annually) and add new tools regularly. Each tool page shows its last-reviewed date.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.