(BMI) Body Mass Index Calculator

Calculate Your Body Mass Index

BMI or Body Mass Index Calculator is all equipped to determine whether your weight is appropriate of not. The Body Mass Index (BMI) Calculator will show your BMI value and your weight status (normal, over weight, underweight etc.) given your age, gender, height, and weight. See the attached reference tables at the end of the page for a better understanding.

BMI Formula

The Body Mass Index (BMI) Calculator allows you to measure your BMI using both the US Units (feet, inches, and pound) and Metric Units (centimeter and kilogram). Following are the formulas to calculate BMI in both units.


BMI Formula

U.S. Units703 x weight(lb) / height2(in2)
Metric Unitsweight(kg) / height2(m2)

BMI Table (for adults)

Following table shows the weight status for different BMI ranges of adults.


Category


BMI range - kg/m2

Thinness (Very Severe)< 16
Thinness (Severe)16 - 17
Mild Thinness (Underweight)17 - 18.5
Normal or Healthy Weight18.5 - 25
Overweight25 - 30
Obese Class I (Moderate)30 - 35
Obese Class II (Severe)35 - 40
Obese Class III (Very Severe)> 40

BMI Table (Age 2-20)

Following table shows the weight status for different BMI ranges of children and teens.


Category


Percentile Range

Underweight<5%
Healthy weight5% - 85%
At risk of overweight85% - 95%
Overweight>95%
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