diff --git a/C/README.md b/C/README.md
index 5076d0b7..9251eeaa 100644
--- a/C/README.md
+++ b/C/README.md
@@ -47,5 +47,7 @@
 | Program-43 | Program for printing the hollow triangle pattern |
 | Program-44 | Program for implementation of the approach |
 | Program-45 | Program to illustrate the above given pattern of numbers. |
+| Program-46 | Program to convert binary number to decimal |
+
 
 
diff --git a/C/program-46/program.c b/C/program-46/program.c
new file mode 100644
index 00000000..f0cff40e
--- /dev/null
+++ b/C/program-46/program.c
@@ -0,0 +1,24 @@
+/* Program to convert binary number to decimal */
+#include <stdio.h>
+#include <math.h>
+int convertBinaryToDecimal(long long n);
+int main()
+{
+    long long n;
+    printf("Enter a binary number: ");
+    scanf("%lld", &n);
+    printf("%lld in binary = %d in decimal", n, convertBinaryToDecimal(n));
+    return 0;
+}
+int convertBinaryToDecimal(long long n)
+{
+    int decimalNumber = 0, i = 0, remainder;
+    while (n!=0)
+    {
+        remainder = n%10;
+        n /= 10;
+        decimalNumber += remainder*pow(2,i);
+        ++i;
+    }
+    return decimalNumber;
+}