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Free health tool
BMI Calculator
Free BMI calculator. Check your Body Mass Index instantly, see weight category, and healthy weight range. Metric & imperial supported.
Body Mass Index calculator
Check Your BMI
Enter your height and weight to see your BMI category and healthy weight range.
Enter valid height and weight values to calculate your BMI.
How to Use the BMI Calculator
Select metric or imperial units, enter your height and weight. The tool instantly shows your BMI, the corresponding weight category, and a suggested healthy weight range for your height.
Frequently Asked Questions
What is a healthy BMI range?
For most adults, a BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
BMI is a useful screening tool but has limitations. It does not distinguish muscle from fat or account for age, sex, or ethnicity. Athletes and elderly people may get misleading results.