diff --git a/Roman number to decimal b/Roman number to decimal
new file mode 100644
index 00000000000..e1cf393848e
--- /dev/null
+++ b/Roman number to decimal	
@@ -0,0 +1,40 @@
+
+def value(r):
+    if (r == 'I'):
+        return 1
+    if (r == 'V'):
+        return 5
+    if (r == 'X'):
+        return 10
+    if (r == 'L'):
+        return 50
+    if (r == 'C'):
+        return 100
+    if (r == 'D'):
+        return 500
+    if (r == 'M'):
+        return 1000
+    return -1
+ 
+def romanToDecimal(str):
+    res = 0
+    i = 0
+ 
+    while (i < len(str)):
+        s1 = value(str[i])
+        if (i + 1 < len(str)):
+            s2 = value(str[i + 1])
+            if (s1 >= s2):
+                 res = res + s1
+                 i = i + 1
+            else:
+                res = res + s2 - s1
+                i = i + 2
+        else:
+            res = res + s1
+            i = i + 1
+ 
+    return res
+
+romannumber = input("Enter the Roman Number you want to convert: ")
+print("Integer form of Roman Numeral is: " + str(romanToDecimal(romannumber)))