GPS Coordinate Format Guides
Plain-language explanations of the coordinate systems MyGPSConverter supports — what each format means, how to read it, and how to convert it, with worked examples that all describe the same real point on the ground. Every guide references the primary standards (NGA, USGS, FGDC) that define the system.
Guides
- MGRS Explained: How to Read and Convert Military Grid Coordinates — grid zone designators, 100 km squares, what the precision digits mean, and MGRS ↔ lat/long conversion.
- How to Convert UTM to Latitude/Longitude — what a complete UTM position needs, a worked conversion, and the zone-letter and datum traps that cause wrong positions.
- DMS to Decimal Degrees: Formula and Worked Examples — the D + M/60 + S/3600 formula in both directions, where DDM fits in, and the sign mistakes to avoid.
- GARS Explained: The Global Area Reference System — 30-minute cells, quadrants, and keypads, and when to use GARS instead of MGRS.
All six formats, converted offline. MyGPSConverter converts between DD, DMS, DDM, UTM, MGRS, and GARS entirely on your phone — free, ad-free, and private.
More from the same developer
- Datum 101 — why identical coordinates can plot in different places (WGS84 vs. NAD27).
- Topographic map navigation with UTM — matching grid coordinates to paper maps.