BMI Calculator and Tracker

What does your BMI say, and is it in the healthy range for your height? BMI Calculator and Tracker answers in a few taps: enter Gender, Age, Height and Weight, tap Calculate, and you get your Body Mass Index, its Category and the Healthy weight range for your height. Saved results build a History and a BMI Trend chart, so you see how the number moves over weeks and months, not just today.

It is built for the whole family: adults get the standard BMI categories, and children and teenagers from birth to 18 years are classified with age- and sex-specific BMI-for-age thresholds. That is why age in years and months and gender are part of the input.

WHY YOU'LL LOVE BMI CALCULATOR AND TRACKER

• Calculate in seconds: Gender, Age, Height, Weight, then Calculate. Metric (cm, kg) or Standard (ft, in, lb) units, switchable at any time.
• A Category you can read: Severe Thinness, Moderate Thinness, Mild Thinness, Normal, Overweight, Obese Class I, II or III, shown next to the number.
• Healthy weight: the weight range that puts your BMI in the Normal band for your height, so you know the target, not just the verdict.
• Children and teens: BMI-for-age classification by gender from birth to 18 years 11 months, with age entered in years and months.
• History: your results with date, BMI and category; delete a single item or use Clear history.
• BMI Trend: a chart of your results over time, the quickest way to see whether you are moving toward the healthy range.
• Useful Content: short articles inside the app, plus Learn more about BMI for the full explanation of the index.
• Works offline, no account; light and dark theme, 73 languages.

HOW IT WORKS

1. Choose Standard or Metric, pick Gender, enter Age, Height and Weight.
2. Tap Calculate: BMI, Category and Healthy weight range appear at once.
3. Open History for the list of results and BMI Trend for the chart.

BMI CATEGORIES FOR ADULTS

• Severe Thinness: below 16
• Moderate Thinness: 16 to 17
• Mild Thinness: 17 to 18.5
• Normal: 18.5 to 25
• Overweight: 25 to 30
• Obese Class I: 30 to 35
• Obese Class II: 35 to 40
• Obese Class III: above 40

For children and teenagers the app uses BMI-for-age thresholds instead of these fixed cut-offs.

PERFECT FOR

• Anyone who wants to know where their weight stands for their height, in one number and one word.
• People working toward a healthier weight who want to see the trend, not a single reading.
• Parents checking a child's or teenager's BMI with age-specific thresholds instead of adult cut-offs.
• Anyone filling in a form that asks for BMI or a healthy weight range.

MORE THAN ONE NUMBER

One result is a snapshot; ten results over three months are a direction. The BMI Trend chart shows the slope, the History shows the dates, and the Healthy weight range tells you how far there is to go. What you do with it, you decide, ideally together with your doctor.

YOUR DATA STAYS WITH YOU

Results are stored locally on your device; no account is required. Useful Content opens articles in the app when you want to read more; the calculator and the history work without internet.

BMI calculator and BMI tracker: calculate body mass index for adults, children and teens, women and men, by age and gender, see your category from underweight to obesity and the ideal weight range for your height, and follow your BMI history and trend chart over time.

Download BMI Calculator and Tracker and give every result its place.

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.

Recent changes:
Improved application stability