What's wrong with the way he's asked his question? It makes perfect sense to me, I just don't know how it's done to answer it. Just help the guy, jeez...
yes, you can convert it, all you need to know is that in game coordinates are a % of the area size. With that in mind, you must know the area size and the area offset in the world map and do the math. Ps: QuestHelper WoW plugin has a Lua file that contais this data (area sizes and offset) for all the actual WoW.
I believe HB use a plain World Map Coordinate. You can stract the offsets and map sizes the same way you can get meshfiles, but you will need a database to store them or a file that HB can read and it can lead to problems, because you can misspell area names, map names and so on. Also they are focusing on questing, this advanced feature is not planed but can be done via plugin. i really dont know what level of info can hjb extract from the game actually.
CowDudes has done the work for us See the thread: [Helper] WorldMapAreas - how to convert abs coords to map coords (0.00-1.00)