BMI Calculator and Tracker

Know your numbers and take charge of your health with BMI Calculator and Tracker — the simple, accurate way to calculate your Body Mass Index and follow your progress as you work toward a healthier weight. Designed for men and women, adults, teens and children, it uses your age and gender to make every result as precise as possible.

Your Body Mass Index is a trusted measure of body fat based on your height and weight, and it's one of the quickest ways to check whether you are in a healthy range. Getting started takes seconds: enter your gender, age, height and weight in metric or US units, tap calculate, and instantly see where you stand.

WHY YOU'LL LOVE BMI CALCULATOR AND TRACKER

• Accurate BMI calculation — personalized by age, gender, height and weight.
• Clear classification — see exactly which BMI category your result falls into.
• Healthy weight range — discover the ideal weight for your height at a glance.
• Progress tracking — log results over time and watch your trend with a detailed history.
• Metric & US units — kilograms or pounds, centimeters or feet and inches.
• Helpful content — practical tips and articles for a healthier lifestyle.
• Works offline — calculate and track anytime, with no internet connection.
• Light & dark themes — a clean, minimalist design that is easy on the eyes.
• 70+ languages — built for users worldwide.

BMI CATEGORIES

• Severe thinness: less than 16
• Moderate thinness: 16 – 17
• Mild thinness: 17 – 18.5
• Normal: 18.5 – 25
• Overweight: 25 – 30
• Obese class I: 30 – 35
• Obese class II: 35 – 40
• Obese class III: more than 40

HOW IT WORKS

1. Enter your gender, age, height and weight.
2. Tap calculate to see your BMI and category instantly.
3. Save the result and track your body mass index as it changes over time.

PERFECT FOR

• Anyone starting a weight loss or fitness journey.
• People who want to reach and maintain a healthy weight.
• Men, women, teens and kids checking their body mass index.
• Tracking progress before, during and after a diet.

WHAT IS BMI?

Body Mass Index (BMI) is your weight in kilograms divided by the square of your height in meters (kg/m²). It is a fast, internationally recognized screening tool that estimates body fat and flags whether you may be underweight, at a healthy weight, overweight or obese. It does not measure muscle or fat directly, but BMI is an easy, reliable starting point for understanding your body and setting realistic health goals.

WHY TRACK YOUR BMI?

Your weight naturally changes with diet, exercise, age and lifestyle. By recording your BMI regularly you can see whether your healthy-eating plan or fitness routine is working, catch unwanted trends early, and stay motivated with clear, visual proof of your progress.

Whether you are losing weight, building healthier habits or simply keeping an eye on your wellbeing, BMI Calculator and Tracker turns a single number into real motivation. Watch your body mass index move in the right direction and celebrate every step toward your goal.

BMI calculator and weight tracker: calculate your body mass index by age, gender, height and weight, see your healthy weight range, check body fat classification from thinness to obesity, and track your weight loss progress over time.

Start today — calculate your BMI, set your goal and begin your journey to a healthier you.

Medical disclaimer: this app does not provide medical advice, diagnosis, or treatment. Always seek your doctor's advice in addition to using this app and before making any medical decisions.

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