Health Calculators
BMI, age, calorie, and ideal weight calculators.
Explore our collection of free health calculators and tools. Each calculator runs instantly in your browser, works offline, and includes detailed explanations, formulas, and examples. Choose a tool below to get started.
BMI Calculator
Calculate Body Mass Index with metric or imperial units and health categories.
Age Calculator
Calculate exact age in years, months, and days from date of birth.
Calorie Calculator
Calculate BMR and daily calorie needs based on activity level.
Ideal Weight Calculator
Estimate ideal body weight using multiple formulas.
Ovulation Calculator
Predict your fertile window, ovulation date, and next period based on your cycle length.
Due Date Calculator
Estimate your baby due date using last menstrual period, conception date, or IVF transfer date.