diff --git a/hexadectobin.cpp b/hexadectobin.cpp
new file mode 100644
index 0000000..237edbc
--- /dev/null
+++ b/hexadectobin.cpp
@@ -0,0 +1,85 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+void HexToBin(string hexdec)
+{
+    long int  i = 0;
+ 
+     while(hexdec[i]!='\0')
+  {
+ 
+        switch (hexdec[i]) 
+    {
+        case '0':
+            cout << "0000";
+            break;
+        case '1':
+            cout << "0001";
+            break;
+        case '2':
+            cout << "0010";
+            break;
+        case '3':
+            cout << "0011";
+            break;
+        case '4':
+            cout << "0100";
+            break;
+        case '5':
+            cout << "0101";
+            break;
+        case '6':
+            cout << "0110";
+            break;
+        case '7':
+            cout << "0111";
+            break;
+        case '8':
+            cout << "1000";
+            break;
+        case '9':
+            cout << "1001";
+            break;
+        case 'A':
+        case 'a':
+            cout << "1010";
+            break;
+        case 'B':
+        case 'b':
+            cout << "1011";
+            break;
+        case 'C':
+        case 'c':
+            cout << "1100";
+            break;
+        case 'D':
+        case 'd':
+            cout << "1101";
+            break;
+        case 'E':
+        case 'e':
+            cout << "1110";
+            break;
+        case 'F':
+        case 'f':
+            cout << "1111";
+            break;
+        default:
+            cout << "\nInvalid hexadecimal digit "<< hexdec[i];
+            exit(0);
+        }//switch
+        i++;
+    }//while
+}//hexa
+ 
+int   main()
+{
+    char hexdec[100] ;
+    cout<<"\nEnter a valid Hexadecimal numeric value:";
+    cin>>hexdec;
+    cout << "\nEquivalent Binary value is : ";
+    HexToBin(hexdec);
+    return 0;
+ 
+    
+}//main