diff --git a/BinAndDec.rb b/BinAndDec.rb
new file mode 100644
index 0000000..962b744
--- /dev/null
+++ b/BinAndDec.rb
@@ -0,0 +1,10 @@
+def binary_to_decimal(binary_array)
+  decimal = 0
+
+  binary_array.length.times do |num|
+    decimal += (2 ** num) * binary_array.pop()
+  end
+
+  return decimal
+
+end