BMI Calculator

0 ft & BMI Scale

BMI calculator weight of 268 pounds and 6 feet 3 inches

Work out my BMI 🍺

Graph your BMI against the healthy norm

Health problems from being overweight

These risks are associated with overweight and obese adults

Adults whose BMI is larger than 25 (overweight) or whose BMI is over than 30 (obese) have an elevated risk for many diseases and health conditions, including,:

BMI Origins

Begun way back in 1830, BMI is a single figure used to as a way of measuring a person's body shape. Put simply, it is calculated by dividing the body's weight by the square of their height. Eg: Kilograms: weight, divided by Metres (Meters): height. Bmi Prime is a variation of the Quetelet index. If you have a Prime of less than 0.74, you are underweight. If your prime is more than 0.74 and less than 1.00, your weight is ideal. If your BMI prime is more than 1 you are seen as being overweight.

How it's calculated

Behind the scenes of BMI
  • BMI = weight(kilograms) / height2 (metres2)         (Metric Units)
  • BMI = 703 . weight(pounds) / height2 (inches2)         (Imperial Units)

BMI limitations

BMI is proportional to the mass and inversely proportional to the square of the height. So, if all body dimensions double, and mass scales naturally with the cube of the height, then BMI doubles instead of remaining the same. This results in taller people having a reported BMI that is uncharacteristically high, compared to their actual body fat levels.
See wikipedia.org/wiki/Body_mass_index#Limitationsinfomation.