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Calculators

Body Mass Index Calculator

This calculator is the granddaddy of them all! BMI uses your height and weight to determine your body composition, or rather, your body’s ratio of fat to muscle.

Excess body fat has been associated with a number of health risks including diabetes, heart disease, high blood pressure, arthritis and much more. So it makes sense to keep your body fat in check!

To use this calculator, enter the following:

1. Your height Feet: Inches:
 
2. Your weight Pounds:
 
3.

Calculate your BMI

 

  Your result:

How It Works

BMI is calculated as follows:

Weight (lbs.) = % body fat
Height

See the below table for typical weight averages.

 

Table 1: BMI Ranges
Weight BMI range
Underweight Less than 18.5
Normal Weight 18.5 – 24.9
Overweight 25 – 29.9
Grade I Obesity 30 – 34.9
Grade II Obesity 35 – 39.9
Grade III Obesity above 40