VitalisAbout Vitalis
A small set of health calculators, built to be fast, private, and easy to trust.
What Vitalis is
Vitalis is a free collection of everyday health calculators, including BMI, age, body fat, daily calories (TDEE), BMR, and ideal weight. Each tool uses a widely recognized formula (Mifflin-St Jeor, the U.S. Navy method, the Devine formula, and so on), explained in plain language next to the result, so you understand what the number means and where it comes from.
Why it's built this way
Every calculation runs entirely in your browser. Nothing you type, including your height, weight, age, or measurements, is sent to a server, stored, or tracked. Close the tab and it's gone. There's no account to create and no email required to see a result.
What Vitalis isn't
These tools give estimates based on general formulas, not a personal medical assessment. They're a useful starting point for understanding your numbers, not a substitute for advice from a doctor, dietitian, or other qualified professional. See our disclaimer for more detail.
Get in touch
Questions, feedback, or something not working right? Visit the contact page. We're happy to hear from you.