The closest you may come to an address-to-box converter is to finish what I started on Google Earth. I created a placemark file that has every box in Brooklyn. Go to an address and see what the nearest box is. I lost interest in making files for the other 4 boroughs. Brooklyn boxes
You want to make it fast and easy go to the bravest.com it give u a lot of information on the FDNY including a box look up it will even show you the map
Shouldn't there be a way to get the excel (or some other file type) from the FDNY Box Lookup website so that you can upload that bulk file to Google Maps? I tried to read the source code but can't see where that table is located.