diff --git a/convert.py b/convert.py
new file mode 100644
index 0000000..2edd281
--- /dev/null
+++ b/convert.py
@@ -0,0 +1,29 @@
+def convert(input, source, target):
+    sbase = len(source)
+    tbase = len(target)
+    
+    value = 0
+    for i,c in enumerate(input):
+        p = len(input)-i-1
+        b = source.index(c)
+        value += b * sbase ** p
+
+    print(value)
+
+    if value == 0:
+        return target[0]
+    
+    output = ""
+    while value > 0:
+        b = target[value % tbase]
+        output = b + output
+        value = value // tbase
+    print("%s -> %s" % (input,output))
+    return output
+
+dec = "0123456789"
+hex = dec + "ABCDEF"
+bin = "01"
+
+convert("15",dec,bin)
+