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BMI Calculator Pro
Calculate your Body Mass Index using metric or imperial units. See your BMI category, healthy weight range, and personalized health insights.
Your BMI
22.9
Category
Normal weight
Underweight
< 18.5 Normal
18.5–24.9 Overweight
25–29.9 Obese
≥ 30
< 18.5 Normal
18.5–24.9 Overweight
25–29.9 Obese
≥ 30
Healthy weight range for your height:
56.7 kg – 76.6 kg
Learn
Understanding Your BMI Score
Body Mass Index (BMI) is a widely used screening tool that estimates body fat based on your height and weight. While it doesn't directly measure body fat, it provides a useful indicator for most adults to assess whether they're in a healthy weight range.
Your BMI falls into one of four categories: underweight (<18.5), normal weight (18.5–24.9), overweight (25–29.9), or obese (≥30). Keep in mind that factors like muscle mass, age, sex, and ethnicity can affect the interpretation of BMI results.
Frequently Asked Questions
BMI (Body Mass Index) is a measure of body fat based on height and weight. It is calculated by dividing weight in kilograms by the square of height in meters. While not a direct measure of body fat, it's a useful screening tool for weight categories.
BMI = weight (kg) / height² (m²). For imperial units: BMI = (weight in lbs / height² in inches) × 703. This tool handles both unit systems for you.
A healthy BMI range is 18.5 to 24.9. Below 18.5 is underweight, 25.0–29.9 is overweight, and 30.0 or above is obese. These ranges apply to most adults 18–65 years old.
BMI is a screening tool, not a diagnostic one. It may not be accurate for athletes with high muscle mass, pregnant women, the elderly, or children. For these groups, additional measurements may be needed.
No. All calculations happen locally in your browser. Your height, weight, and BMI information never leaves your device.