Conversion depends on what you want to convert. For instance if you want to convert units You use the memory devices - King Henry Drinks Milk During Castle Meetings The starting letter of each words represents the conversion chart km hm dm mm dm cm mm
A convert is a person that comes into a religion. He converts from his previous beliefs to join another religion, or to become a christian if they were previously not a christian
You have to take a lot of classes, and convince a priest or rabbi that you're serious about it.you need to be more specific about what units of mesure.