BMI & Ideal Weight Health Calculator
Free in-browser Body Mass Index (BMI) and Health Metrics Calculator. Accurately calculate your BMI with World Health Organization (WHO) weight category classifications (Underweight, Normal, Overweight, Obese), determine your ideal body weight range, and estimate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) with Metric and Imperial units.
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How to Calculate BMI & Ideal Weight in 3 Steps
Choose Unit System
Select Metric (cm, kg) or Imperial (ft/in, lbs).
Enter Your Measurements
Input your height, current weight, age, gender, and activity level.
Review BMI & Calories
Inspect your BMI score, WHO category gauge, healthy target weight, and daily TDEE calories.
Frequently Asked Questions
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