The Body Mass Index (BMI) or Quetelet index is a value derived from the mass (weight) and height of an individual, male or female. The BMI is defined as the body mass divided by the square of the body height and is universally expressed in units of kg/m2, resulting from the mass in kilograms and height in meters. The formula is:
BMI = (mass or weight)/(height*height) where, mass or weight is in Kg, height is in meters
Examples:
Input : height(in meter): 1.79832 weight(in Kg): 70 Output : The BMI is 21.64532402096181, so Healthy. Explanation : 70/(1.79832*1.79832) Input : height(in meter): 1.58496 weight(in Kg): 85 Output : The BMI is 33.836256857260594 so Suffering from Obesity Explanation : 70/(1.58496*1.58496)
C++
#include <iomanip>#include <iostream>#include <math.h>using namespace std; // C++ program to illustrate// how to calculate BMIfloat BMI(float height, float weight){ float bmi = weight / pow(height, 2); return bmi;}int main(){ float height = 1.79832; float weight = 70; // Function call float bmi = BMI(height, weight); cout << "The BMI is " << setprecision(15) << bmi << " so "; // Conditions to find out BMI category if (bmi < 18.5) cout << "underweight"; else if (bmi >= 18.5 && bmi < 24.9) cout << "Healthy"; else if (bmi >= 24.9 && bmi < 30) cout << "overweight"; else if (bmi >= 30) cout << "Suffering from Obesity"; return 0;} // This code is contributed by aarohirai2616. |
Java
// Java code to solve the problemimport java.io.*; class GFG{ // Java program to illustrate // how to calculate BMI public static double BMI(double height, double weight) { double bmi = weight / Math.pow(height, 2); return bmi; } // Driver code public static void main(String[] args) { double height = 1.79832; double weight = 70; // Function call double bmi = BMI(height, weight); System.out.print("The BMI is " + bmi + " so "); // Conditions to find out BMI category if (bmi < 18.5) System.out.print("underweight"); else if (bmi >= 18.5 && bmi < 24.9) System.out.print("Healthy"); else if (bmi >= 24.9 && bmi < 30) System.out.print("overweight"); else if (bmi >= 30) System.out.print("Suffering from Obesity"); }} // This code is contributed by aarohirai2616. |
Python3
#Python program to illustrate # how to calculate BMIdef BMI(height, weight): bmi = weight/(height**2) return bmi # Driver codeheight = 1.79832weight = 70 # calling the BMI functionbmi = BMI(height, weight)print("The BMI is", format(bmi), "so ", end='') # Conditions to find out BMI categoryif (bmi < 18.5): print("underweight") elif ( bmi >= 18.5 and bmi < 24.9): print("Healthy") elif ( bmi >= 24.9 and bmi < 30): print("overweight") elif ( bmi >=30): print("Suffering from Obesity") |
C#
// C# code to solve the problemusing System; public class GFG { // function to calculate BMI public static double BMI(double height, double weight) { double bmi = weight / Math.Pow(height, 2); return bmi; } static public void Main() { // Code double height = 1.79832; double weight = 70; // Function call double bmi = BMI(height, weight); Console.Write("The BMI is " + bmi + " so "); // Conditions to find out BMI category if (bmi < 18.5) Console.Write("underweight"); else if (bmi >= 18.5 && bmi < 24.9) Console.Write("Healthy"); else if (bmi >= 24.9 && bmi < 30) Console.Write("overweight"); else if (bmi >= 30) Console.Write("Suffering from Obesity"); }} // This code is contributed by lokesh. |
Javascript
<script>// Javascript program to illustrate // how to calculate BMI function BMI(height, weight){ let bmi = weight/Math.pow(height, 2); return bmi; } let height = 1.79832; let weight = 70; // Function call let bmi = BMI(height, weight); process.stdout.write("The BMI is " + bmi + " so "); // Conditions to find out BMI category if (bmi < 18.5) console.log("underweight"); else if (bmi >= 18.5 && bmi < 24.9) console.log("Healthy"); else if (bmi >= 24.9 && bmi < 30) console.log("overweight"); else if (bmi >= 30) console.log("Suffering from Obesity"); // This code is contributed by aarohirai2616. </script> |
Output:
The BMI is 21.64532402096181 so Healthy
Time complexity: O(1) since constant operations are done
Auxiliary Space: O(1)
