Type your height and weight. Choose metric (cm and kg) or imperial (feet, inches and lbs), whichever you prefer.
Your BMI result appears right away, along with the category it falls into, such as underweight, normal, overweight or obese.
Read what your BMI means and use it as a general guide. For personal health advice, talk to a doctor. It’s free with no sign-up.
BMI, or Body Mass Index, is a number calculated from your weight and height. It is a quick way to see whether your weight is in a typical range for your height.
Enter your height and weight in the calculator and your BMI appears instantly. The formula is weight in kilograms divided by height in meters squared. It’s free and needs no sign-up.
For adults, a BMI below 18.5 is underweight, 18.5 to 24.9 is normal weight, 25 to 29.9 is overweight, and 30 or above is obese. These are the standard ranges used by the World Health Organization.
A BMI between 18.5 and 24.9 is generally considered the normal range for adults. Your ideal weight can still vary based on age, build and overall health.
Yes. Switch between metric (kg and cm) and imperial (lbs, feet and inches), and the calculator converts the units for you. (Apne tool ke units ke mutabiq adjust kar lein.)
BMI is a useful general guide, but it is not perfect. It does not separate muscle from fat, so athletes and very muscular people may get a high BMI even when they are healthy.
The adult ranges on this page are meant for people aged 20 and above. For children and teens, BMI is compared with growth charts for their age and sex, so ask a doctor or pediatrician.
No. BMI is only a screening number and cannot diagnose any condition. If you are worried about your weight or health, speak to a doctor or qualified health professional.
No. Your height and weight are calculated in your browser and are not saved or shared with anyone.
Yes to both. The calculator is completely free, and it works in any modern browser on phone, tablet or desktop.
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Calculate your Body Mass Index from height and weight. Works in kg, cm, lbs and feet.
BMI is weight in kilograms divided by height in meters squared. It is a quick screening number, not a diagnosis: it does not separate muscle from fat, and it can read high for athletes and low for older adults. Talk to a doctor before making health decisions from it.