BMI Calculator

Find your body mass index from height and weight.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

Body Mass Index takes a person's weight and divides it by the square of their height, producing a single number that places them into broad categories such as underweight, normal, overweight, and beyond. It was designed as a quick population-level screening figure rather than a precise measure of body fat or health, since it cannot distinguish muscle mass from fat mass.

People commonly check it out of general curiosity about where they fall relative to standard reference ranges, and it appears in fitness tracking, insurance forms, and routine health checkups as a starting point for further conversation rather than a diagnosis. Athletes and very muscular individuals in particular tend to see figures that don't reflect their actual body composition.

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