Free BMI Calculator ⚖️
Calculate your Body Mass Index (BMI), WHO body rating category, and ideal healthy weight target in Metric & Imperial units!
⚙️ Physical Measurements
Frequently Asked Questions
What is Body Mass Index (BMI)?
Body Mass Index (BMI) is a standardized health screening metric calculated from an individual's height and weight. It provides a simple numeric measure to assess if a person is underweight, normal weight, overweight, or obese.
What is considered a normal healthy BMI?
According to the World Health Organization (WHO), a normal healthy BMI for adults falls between 18.5 and 24.9. A BMI below 18.5 indicates underweight, while 25 to 29.9 indicates overweight.
How is BMI calculated in Metric and Imperial units?
In metric units: BMI = Weight (kg) / [Height (m)]². In imperial units: BMI = [Weight (lbs) × 703] / [Height (inches)]².
How is my target ideal weight range calculated?
Your ideal weight range is computed by finding the exact weight bounds where your BMI equals 18.5 (lower threshold) and 24.9 (upper threshold) based on your height.