Health Calculators

Health and fitness calculators for BMI, calories, pregnancy and more.

458 calculators

Body measurements

BMI calculators

Army calculators

Dietary calculators

Diabetes calculators

Metabolic disorders

Sleep calculators

Cardiovascular system

Gynecology & pregnancy

Addiction medicine

Urology & nephrology

Electrolytes & fluids

Hematology

Percentile calculators

Pediatric calculators

Pediatric dosage

Dosage calculators

Pulmonary calculators

Psychiatry & psychology

Intensive & emergency care

Digestive system

Epidemiology

Radiology

Geriatric medicine

COVID-19 vaccine

Other health calculators

More health calculators

About Health Calculators11

Health and fitness calculators for BMI, calories, pregnancy and more.

Whether you are a student, professional, or just need quick answers, our Health tools help you get reliable results in seconds — no signup required.

How to Use These Calculators

  1. Browse the calculator list above or use the search filter
  2. Open any tool and enter your values
  3. Results update instantly with clear explanations

Why Use Our Health Tools?

  • Free forever — all calculators are open to everyone
  • Mobile friendly — works on phone, tablet, and desktop
  • Accurate formulas — based on standard methods and best practices
  • Easy to share — bookmark or embed calculators on your site

Popular Uses

People use Health calculators for everyday planning, homework, work projects, and quick decision-making. Pick a tool from the list above to get started.

Yes. Every Health calculator is completely free with no registration or hidden fees.

Browse the full list on this page — we add new Health tools regularly to cover more use cases.

Use the contact page to send your suggestion. We review requests and add popular tools to the collection.