Health Calculators
Evidence-based health tools using established medical formulas.
10 calculatorsBMI Calculatorpopular
Body mass index with animated scale and healthy weight range
BMR Calculator
Basal metabolic rate and TDEE — three formulas compared
Calorie Calculatorpopular
Daily calorie target for any goal — cut, bulk or maintain
Body Fat Calculator
US Navy, BMI and Jackson-Pollock methods compared
Ideal Weight Calculator
Five formulas with frame size adjustment and progress bar
Water Intake Calculator
Daily hydration target with hourly drinking schedule
Pace Calculator
Running, cycling, swimming — pace, time, distance and splits
Heart Rate Calculator
Max HR, 5 training zones, Karvonen method and VO2 max
Pregnancy Calculator
Due date, trimester progress and 15 pregnancy milestones
Macro Calculator
Protein, carb and fat targets — cut, bulk, keto or custom