Free Health Calculators
Built for Everyone
Daily Health Tools is a free, independent health calculator platform trusted by users in over 50 countries. We build accurate, evidence-based tools that help you understand your health -- from blood pressure and blood sugar to keto macros, pregnancy, and beyond.
Why We Built Daily Health Tools
Health information should be free, accurate, and accessible to everyone -- not locked behind paywalls or buried in confusing medical jargon. That is the belief that drives everything we do at Daily Health Tools.
We started with a simple observation: millions of people worldwide lack easy access to the tools they need to understand their own health. Whether it is a person in Lahore checking if their blood pressure is normal, a first-time mother in Lagos wondering about her pregnancy weight gain, or a fitness enthusiast in London calculating their keto macros -- everyone deserves clear, evidence-based health information at their fingertips.
Every calculator on Daily Health Tools is built against published clinical guidelines from organisations like the American Heart Association (AHA), World Health Organisation (WHO), National Institutes of Health (NIH), American Diabetes Association (ADA), and International Society of Sports Nutrition (ISSN). We cite our sources, acknowledge limitations, and always remind users to consult their doctor for personalised medical advice.
What We Stand For
These six principles guide every decision we make, from the formulas we choose to the language we use in our tools.
70+ Free Health Calculators -- All in One Place
Every tool on Daily Health Tools is free, evidence-based, and includes a detailed educational guide, WhatsApp share card, and PDF download. Explore all our calculators by category below.
How We Ensure Medical Accuracy
Every calculator on Daily Health Tools is built to meet strict accuracy standards. We do not publish tools we cannot verify against established clinical evidence. Here is how we build and maintain accuracy across all our tools.
⚠ Important Medical Disclaimer
All content on Daily Health Tools -- including calculators, articles, reference ranges, and health information -- is provided for informational and educational purposes only. It does not constitute and should not be used as a substitute for professional medical advice, diagnosis, or treatment.
Our calculators use validated clinical formulas and established reference ranges, but they cannot account for your complete medical history, current medications, individual physiology, or the clinical context that only a qualified healthcare professional can provide. A single calculator result should never be used to make medical decisions.
If you are experiencing health symptoms, have been diagnosed with a medical condition, take prescription medication, are pregnant, or have any health concerns -- please consult a qualified doctor or registered healthcare professional. In a medical emergency, call your local emergency services immediately.
Daily Health Tools does not store, process, or share any personal health information entered into our calculators. All calculations occur locally in your browser and no data is transmitted to our servers.
Get in Touch
Have a suggestion for a new calculator? Found an error in one of our tools? Want to collaborate or provide feedback? We love hearing from our users -- every message helps us make Daily Health Tools better.
