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So you have two conversions to do: UTM to latitude,longitude and latitude,longitude to EPSG:3857 (EPSG:3785 has been deprecated and replaced with 3857). … UTM is based on tranverse Mercator and knowing the UTM zone allows you to figure out the parameter values. To convert to EPSG:3857, you will need the sphere-based equations for Mercator. …

In general, the transverse Mercator algorithms on an ellipsoid only support one hemisphere. The TM algorithms on a sphere could show both "sides" of the cylinder but usually don't as people don't like …

For UTM (and MGRS), the easting should always be bigger than 100 km and smaller than 900 km. I ran some test points on UTM 11 North. …

If you're using WGS84, for a northern hemisphere zone, concatenate 326 + zone number. For a southern hemisphere zone, concatenate 327 + zone number. The 326 comes from 4326, the code for a 2D WGS84. …

There is no way to tell, unless the area of interest doesn't share the same coordinates. For instance, with zone 32 North, the range of easting/X coordinates are >500000 while the range is <500000 for …

To calculate the latitude band, you would have to unproject the UTM coordinates back to latitude-longitude first. …

No, because UTM coordinates are repeated in each zone. …

You can project latitude-longitude coordinates into any UTM zone you want. … You could display everything in a single UTM zone or some other projected coordinate reference system, but LABEL the positions with the appropriate UTM coordinates, as you did in your image. …

The first digits are the zone number and give you the longitude range. The letter is the latitude band. A good starting point on understanding this is Wikipedia.

Under projected coordinate systems, select UTM, then WGS 1984. I honestly can't remember if we had divided the zones into northern and southern hemisphere folders. … You can 'label' a layout with a grid in using either UTM zone, but the map itself has to be in either 42N or 43N. …

You can also go larger-scale and modify an existing UTM zone by changing the central meridian to -47 (change the name of the projected coordinate reference system too). … Some UTM definitions using Brazil-specific GCS (SAD69 (96)) are in UTM, South America. …

Some countries have never published a countrywide projected coordinate reference system (CRS). The only way to discover it if no one contacts a GIS software vendor or CRS registry is if it's easily fo …

They have MGRS and UTM test points on various geographic coordinate reference systems (datums). …

By rebox, I mean that you should separately project all four corners from UTM to WGS84, then take the minimum and maximum values and use those instead. …

The first (WGS 1984 UTM 33 North) has map units of meters, while the second has decimal degrees. …