implement pounds2kg

Author: zonca

conversion.py

@@ -9,3 +9,8 @@ def gallons2liters(gallons):
     """Convert gallons to liters"""
     liters = gallons * 3.785
     return liters
+
+def pounds2kg(pounds):
+    """Convert pounds to Kg"""
+    kilograms = pounds / 2.2
+    return kilograms