Free health tools
Free health & nutrition tools
Fast, private calculators for everyday health questions. Enter your numbers, get an instant answer — every tool runs in your browser and nothing is stored or sent.
Every tool runs entirely in your browser. No sign-up, and none of your inputs are saved.
Live
BMI Calculator
Body Mass Index from your height and weight.
Open tool LiveBMR Calculator
Resting calories and daily energy needs.
Open tool LiveWeight Goal Calculator
Daily calorie target to lose or gain weight.
Open tool LiveBody Fat Estimate
Approximate body fat from simple measurements.
Open tool LiveIdeal Weight Range
A healthy weight window for your height.
Open tool LiveMacro Calculator
Daily calories split into protein, carbs and fat.
Open tool LiveProtein Intake Calculator
How much protein you need each day.
Open tool LiveWater Intake Calculator
Your daily water needs by weight.
Open tool LiveWaist-to-Hip Ratio
A quick check of your fat distribution.
Open tool LiveLean Body Mass
Your body weight minus fat.
Open tool