Health calculators

Health calculators turn a few measurements into numbers that doctors and guidelines use, such as body mass index. They are screening tools: they can tell you when a number is worth discussing with a doctor, not what is wrong or what to do about it.

Ready to use

BMI Calculator

Body mass index with WHO and Asian Indian categories.

Where Indian guidelines differ from international ones, as they do for BMI, both are shown and explained.

Coming soon

  • Ideal Weight Calculator
  • BMR Calculator
  • TDEE Calculator
  • Calorie Calculator
  • Body Fat Calculator
  • Lean Body Mass Calculator
  • Body Surface Area Calculator
  • FFMI Calculator
  • Macro Calculator
  • Protein Calculator
  • Water Intake Calculator
  • Calorie Deficit Calculator
  • Target Heart Rate Calculator
  • Healthy Weight Range Calculator
  • Due Date Calculator
  • Ovulation Calculator

Questions

Can a calculator replace a medical check-up?

No. These tools use simple formulas that ignore much of what a doctor looks at. Treat the results as information to take to a qualified professional.

Is my health data saved?

No. Calculations run in your browser and nothing you type is sent to our server.