Coordinate Converter Pro
v3.0Input Settings
Drag and Drop CSV / Excel
Auto-extracts coordinate columns for conversion
Target Projection
LocationTech Proj4J 1.3.0 Engine
LocationTech Proj4J 1.3.0 Geodetic Coordinate Engine
Seamlessly transform geographic and projected coordinates worldwide with sub-millimeter precision. Powered by the Eclipse LocationTech Proj4J 1.3.0 geodetic transformation engine and an integrated search index covering over 5,000 EPSG coordinate reference systems.
Perform bidirectional conversion between Decimal Degrees (WGS 84), Degrees Minutes Seconds (DMS), Universal Transverse Mercator (UTM), Military Grid Reference System (MGRS), Everest 1830 Indian Grid zones, Lambert-93, British National Grid, and custom State Plane projections.
Key Features
LocationTech Proj4J 1.3.0 Engine
Robust Java geodetic engine with datum shifting, ellipsoid transformations, and high-precision cartographic calculations.
5,000+ CRS Search & Discovery
Instant offline autocomplete across global EPSG systems, with on-demand synchronization to the worldwide EPSG.io registry.
Any-to-Any Coordinate Pipeline
Select any source CRS and target projection with live interactive Leaflet visualization and axis order toggle.
High-Throughput Batch Processing
Upload massive CSV and Excel spreadsheets (50,000+ points) processed with dedicated multi-threaded Web Workers.