C program to calculate Body Mass Unit (BMI)

C program to calculate Body Mass Unit 

Before coding the C program to calculate Body mass index (BMI), we have to knowledge about BMI

Body mass index (BMI) is a measure of fat on the basis of height and weight and that apply to men and women.

How to calculate BMI

The formula of BMI = weight (in k. g.)/Meter²

C program to calculate Body Mass Unit (BMI) (When weight in K. g. )

Program

#include<stdio.h> #include<conio.h> void main() {    float w, m, bmi, d;    // taking input of weight in kg from users    printf("\n Enter weight (in kg)");    scanf("%f", &w);    // taking input of height in meter from users    printf("\n Enter height (in meter)");    scanf("%f", &m);    // calculating m    d=m*m;    // using formulat of BMI    bmi=w/d;    // printing Body Mass Index    printf("\n Body mass index (BMI) is %f", bmi);    getch(); }

Output

C program to calculate Body Mass Unit (BMI) (When weight in feet )

We need height in meter to calculate BMI and if the height in feet first we change height feet into the meter

How to convert feet into the meter

1 feet = 30.48 centimeter

And, 100 centimeter = 1 meter

For example,

6 feet =      30.48 * 6 = 182.88 cm

182.88 cm = 182.88/100

                  = 1.8288 meter

Program

#include<stdio.h> #include<conio.h> void main() {    float w, h, c, m, bmi, d;    // taking weight (in kg) input from user    printf("\n Enter weight (in kg)");    scanf("%f", &w);    //taking height (in feet) input from user    printf("\n Enter height (in feet)");    scanf("%f", &h);    // converting feet into centimeters (1 f =30.48 cm)    c=h*30.48;     //converting centimeters into meters (1 m =100 cm)    m=c/100;    // finding (meter)2    d=m*m;    // using bmi=kg/(meter)2 formula    bmi=w/d;    // printing BMI    printf("\n Body mass index (BMI) is %f", bmi);    getch(); }

Output

C program to calculate Body Mass Unit (BMI) (When weight in feet )

We need height in meter to calculate BMI and if the height is in Centimeter, we change cm into the meter

How to convert CM into the meter

1oo centimeter = 1 meter

Centimeter = cm / 100

For example

150 cm = 150/100

              = 1.5 meter   

Program           

#include<stdio.h> #include<conio.h> void main() {      float w, h, m, bmi, d;      // taking weight (in kg) input from user      printf("\n Enter weight (in kg)");      scanf("%f", &w);      //taking height (in cm) input from user      printf("\n Enter height (in cm)");      scanf("%f", &h);      // converting centimeters into meter      m=h/100;      // finding (meter)2      d=m*m;      // using bmi=kg/(meter)2 formula      bmi=w/d;      // printing Body mass index      printf("\n Body mass index (BMI) is %f", bmi);      getch(); }

Output