Coordinate Convert

Coordinate Convert is a high-performance coordinate transformation utility designed for surveyors, GIS professionals, and engineers. Streamline your workflow by converting large datasets between Geographic (Latitude/Longitude) and Projected (XY) coordinate systems directly on your Android device.

Key Features:
CSV Batch Processing: Import CSV files and map columns for Point Names, Latitude/Longitude, or Northing/Easting. No manual data entry required.


Bidirectional Transformation: Seamlessly convert from Projected (XY) to Lat/Lon or vice versa.

Interactive Column Mapping: The app intelligently suggests column matches based on headers, allowing you to process various CSV formats without tedious pre-formatting.

Map Preview: Instantly visualize your converted data on an interactive map (OSMDroid) to verify accuracy before exporting.

Flexible Exporting: Save your processed results as a new CSV file on your device or share them directly via email and cloud storage.

Supported Coordinate Systems:

JGD2011 (Japan Plane Rectangular CS): Full support for Zones 1 through 19 using the GRS80 ellipsoid.


UTM (Universal Transverse Mercator): Global WGS84 support for all zones (1-60).
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Custom EPSG Codes: Need a specific system? Simply input the standard EPSG code (e.g., 3857, 4326) for specialized transformations.

Optimized Workflow:
1. Load: Select your CSV file from your device storage.

2. Map: Define which columns contain your names and coordinates.

3. Convert: Choose your target system and direction.

4. Verify & Export: Inspect points on the map and save your results with a single tap.

Whether you are working on a construction site, conducting field research, or managing GIS data, Coordinate Convert provides the precision of Proj4J in a portable, user-friendly package.

Recent changes:
The first version has been released.