VitaCalc — Free Online Health Calculators
Free, private health calculators — BMI, calories burned, BMR, TDEE, body fat, ideal weight, macros and more. All calculations run locally in your browser. No ads, no data collection, no sign-up required.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly with WHO classifications. See your BMI Prime, Ponderal Index, and healthy weight range. VitaCalc's BMI calculator supports both metric and imperial units, and gives you actionable health insights based on your results.
Use the BMI CalculatorCalorie & BMR Calculator
Calculate exercise calories burned for over 20 activities using MET values, or determine your daily energy needs with BMR and TDEE using Mifflin–St Jeor, Harris–Benedict, or Katch–McArdle formulas. Includes customisable macronutrient splits for protein, carbs, and fat.
Use the Calorie CalculatorAdditional Health Tools
A collection of free health calculators including: Body Fat Calculator (U.S. Navy method), Ideal Weight Calculator (Devine, Robinson & Hamwi formulas), Macro Calculator for custom macronutrient splits, Food Energy Converter (kcal, kJ, cal, J), and a Hydration Calculator based on body weight and activity level.
Explore Additional ToolsWhy VitaCalc?
Most health calculators are buried in ads or want your credit card. VitaCalc is free, runs entirely in your browser and doesn't collect any personal data. Built by Samuel Hills, a software developer based in Zürich, Switzerland.
About the Creator
Samuel Hills is a software developer based in Zürich, Switzerland, specializing in iOS and web development with Swift, React, and TypeScript. He built VitaCalc to provide free, honest health tools without ads or paywalls.
About Samuel HillsContact & FAQ
Have a question about VitaCalc? Find answers to frequently asked questions about BMI, calorie calculations, BMR formulas, and how VitaCalc protects your data privacy. Or send a message directly.
Contact & Help