Maybe there's a better place to ask this, but I figured maybe someone has come into this problem before and can give me a hand with it.
I have a bunch of locations (36k) and they are represented using SIRGAS2000 (UTM 21s) coordinates. I need some way of converting them to traditional LatLng (Geodetic) format so I can upload them to my database and use those coords with Google Maps API.
Has any of you ever bumped into something similar?