diff --git a/Conversions/C:C++/decimal_to_binary.cpp b/Conversions/C:C++/decimal_to_binary.cpp
new file mode 100644
index 00000000..41e931f8
--- /dev/null
+++ b/Conversions/C:C++/decimal_to_binary.cpp
@@ -0,0 +1,31 @@
+#include <iostream> 
+using namespace std; 
+  
+// function to convert decimal to binary 
+void decToBinary(int n) 
+{ 
+    // array to store binary number 
+    int binaryNum[32]; 
+  
+    // counter for binary array 
+    int i = 0; 
+    while (n > 0) { 
+  
+        // storing remainder in binary array 
+        binaryNum[i] = n % 2; 
+        n = n / 2; 
+        i++; 
+    } 
+  
+    // printing binary array in reverse order 
+    for (int j = i - 1; j >= 0; j--) 
+        cout << binaryNum[j]; 
+} 
+  
+// Driver program to test above function 
+int main() 
+{ 
+    int n = 17; 
+    decToBinary(n); 
+    return 0; 
+}