You can add coordinate grids to the map on gaiagps.com via the Settings menu.
The available options are:
- Latitude/Longitude - Decimal Degrees
- Latitude/Longitude - Degrees Minutes Seconds
- UTM - Universal Transverse Mercator
- MGRS - Military Grid Reference System
1. Click the Settings menu in the left sidebar.
2. Click the bubble icon next to the preferred Grid Overlay and choose a coordinate grid.
3. For example, picking Lat/Long will show a Lat/Long grid on the map, like this:
4. To remove the grid, select "None" under the Grid Overlay options.