Our health calculators use clinically validated formulas from WHO, CDC, and peer-reviewed research. For informational purposes only — always consult a qualified healthcare provider for medical decisions.
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BMI Calculator
Body Mass Index with WHO weight category classification
→Calorie Calculator
Daily calorie needs using the Mifflin-St Jeor equation
→Body Fat Calculator
Body fat percentage using the US Navy circumference method
→BMR Calculator
Basal Metabolic Rate — two formulas side by side
→Ideal Weight Calculator
Four established medical formulas compared
→Due Date Calculator
Pregnancy due date and trimester milestones
→Running Pace Calculator
Pace, speed, and race time projections
→Sleep Calculator
Optimal bedtimes based on 90-minute sleep cycles
→Water Intake Calculator
Personalized daily hydration target
→Calories Burned Calculator
Exercise energy expenditure using MET values