BMI-Calculator

BMI Calculator using Python Tkinter

BMI formula:

• US units: BMI = (weight (lb) / height^2 (in)) * 703
• Metric units: BMI = weight (kg) / height^2 (m)

Example 1:

Weight 64 kg and height 1.9 meters tall

BMI = w / h^2

BMI = 64 / 1.9^2

BMI = 64 / 3.61

BMI = 17.1

Example 2:

Weight 184 lb and height 5.10 feet

BMI = (w / h^2) * 703

BMI (184 / 4900) * 703

BMI = 0.3755 * 703

BMI = 26.4

BMI categories are as follows:

• Severely underweight: less than 16.0
• Underweight: between 16.0 and 18.4
• Normal: between 18.5 and 24.9
• Overweight: between 25.0 and 29.9
• Moderately Obese: between 30.0 and 34.9
• Severely Obese: between 35.0 and 39.9
• Morbidly Obese: greater than 40.0

Note: Keep in mind that BMI is a ratio between height and total body weight and does not differentiate between weight from muscle or weight from fat, nor consider an individual’s body frame type. It is only one of the several tools used to assess a person’s weight and overall health.

The following program uses the two following functions:

• calculateBMI()
• indexBMI()

Within calculateBMI(), the following is executed:

• the user weight is converted to kg
• the user height is converted to centimeters
• BMI is calculated and rounded
• indexBMI() is called

Within indexBMI(), the following is executed:

• the final result is displayed depending on the BMI value

If you are concerned about your weight, it is best to consult with a healthcare professional.