myFree Health & Fitness Calculators
11 calculators
Free health and fitness calculators covering BMI, daily calorie needs, body fat percentage, ideal weight, hydration, protein intake and pregnancy due date. All calculations run entirely in your browser — your data is never sent to a server.
BMI Calculator
Body Mass Index in metric & imperial. Instant healthy-range check.
BMR Calculator
Calories burned at complete rest — your metabolic baseline.
Body Fat Calculator
US Navy method estimate from waist, neck & height.
Calorie Calculator
Daily calorie needs (TDEE) by age, weight, height & activity.
Due Date Calculator
Pregnancy due date & gestational week from last period.
Health Stats Suite
BMI, TDEE & ideal weight combined in one tool.
Ideal Weight
Healthy weight range for your height — multiple formulas.
Ovulation Calculator
Fertile window & ovulation date from your cycle.
Pomodoro Timer
Focus intervals with customisable work & break periods.
Protein Intake Calculator
Daily protein target based on body weight & fitness goal.
Water Intake
Daily hydration target by weight, climate & activity.
Browse other categories