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Thread: BMI Calculator, problem with output

  1. #1
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    Default BMI Calculator, problem with output

    Write a Java program to compute body mass index (BMI).



    Test Data
    Input weight in pounds: 452
    Input height in inches: 72


    Expected Output:
    Body Mass Index is 61.30159143458721

    import java.util.Scanner; 
     
    class RicMain 
    { 
        public static void main(String args[]) 
        { 
            //formula for body mass index: BMI = (730) * (Weight(w)(in pounds)/height * height(h)(in inches)) 
            Scanner hw = new Scanner(System.in); 
     
            System.out.print("Enter your height in pounds: "); 
            double h = hw.nextDouble(); 
     
            System.out.print("Enter your weight in inches: "); 
            double w = hw.nextDouble(); 
     
            double bmi = ((730 * w) / (h * h)); 
            System.out.println("Your body mass index (BMI) is: " + bmi);  
        } 
    }

    There is a problem. When I enter the following after executing the code:
    Enter your height in pounds: 452
    Enter your weight in inches: 72
    Your body mass index (BMI) is: 0.257263685488292 <------This is wrong. What an I doing wrong?

  2. #2
    Super Moderator Norm's Avatar
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    Default Re: BMI Calculator, problem with output

    "Enter your height in pounds:
    Strange. Check the variables.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
    Junior Member tonya's Avatar
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    Default Re: BMI Calculator, problem with output

    You have entered your weight and height incorrectly (weight is pounds not inches..) plus your maths is wrong is should be:
    BMI = 703 * w / (h * h)

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