Welcome to the most comprehensive coordinate tool!

LUC offers an advanced coordinate converter supporting dozens of coordinate systems, detailed activity tracking, GeoJSON/KML export, multiple map layers, offline use, and professional measurement tools.

LUC supports many coordinate formats used worldwide:
• MGRS (Military Grid Reference System)
• UTM (Band & Hemisphere)
• ED50 (all regions)
• Irish Grid (TM65)
• OSGB36 (British National Grid)
• ITM (Irish Transverse Mercator)
• Swiss Grid (CH1903/LV03)
• Web Mercator (EPSG:3857)
• Lat/Long (DD, DDM, DMS)
• Maidenhead Locator
• GeoRef
• Geohash
• NAC
• …and many more.


Customize your map experience:
• Satellite, terrain, topo, night mode, and special thematic layers
• Offline maps
• Multiple map styles


Professional Mapping Tools
• Polygon, circle, and polyline drawing
• Elevation calculation
• Distance and area measurements
• Dozens of different map markers
• Address search


Export your drawings and map markers:
• Export as GeoJSON or KML
• Share via link with anyone you like


LUC tracks your location in real time and records your entire route as a track on the map.

See and save your route instantly while running, walking, or working in the field.


Start a shared activity with up to 30 people you invite.
• Everyone’s location appears live on the map
• Ideal for team coordination
• Export all activity data as GPX at the end


With LUC, all coordinates, drawings, activities, and routes on the map are now just one tap away!