Batch Coordinate Converter Pro
Convert up to 50,000 coordinates instantly. Support for any EPSG coordinate system, MGRS, UTM, DMS, Tokyo Datum, and more — all processed locally in your browser.
Quick Reference: Batch Conversion Risk
Professional warning: 50,000 rows amplify errors. A single wrong datum or EPSG code can propagate mistakes across the entire dataset and create $150,000+ defense costs.
💡 Save your configuration now and restore it later to avoid repeated mapping mistakes.
Drag & Drop Your File Here
or click anywhere to browse from your device
Auto-detects delimiters. Max recommended: 50,000 rows.
Frequently Asked Questions
Is there a row limit?
We recommend batches of up to 50,000 rows for optimal browser performance. Larger datasets (up to 100,000 rows) will still process but may take longer. For files exceeding 100k rows, we recommend splitting them into smaller batches for reliability.
What happens to my data?
Nothing leaves your device. All geodetic transformations are performed in your browser's RAM using JavaScript Web Workers. No coordinate data is ever transmitted to our servers. This tool is fully client-side for maximum security and privacy compliance.
How accurate are the results?
We use the same high-precision geodetic library found in our manual tools. MGRS transformations are accurate to the 1-meter grid, UTM calculations use the full WGS84 ellipsoid model, and EPSG transformations leverage the industry-standard Proj4js library with definitions sourced directly from the EPSG registry.
Can I save my column mappings for recurring projects?
Yes. After configuring your conversion method and column mappings, click "Save This Configuration". On your next visit, the Batch Converter will automatically restore your previous settings, including the selected conversion method and EPSG code.
Which coordinate systems are supported?
We support any EPSG-registered coordinate system (10,000+ projections worldwide), plus MGRS, UTM, DMS, Tokyo Datum, Web Mercator, and decimal degree conversions. Enter any valid EPSG code in the Advanced Options panel to access the full registry.
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