Coordinate Converter

About This Tool

The tool converts coordinate pairs between decimal degrees and DMS, supporting N/S and E/W indicators, compact notations, and whitespace variations. It accepts latitude first, then longitude, in either order, and returns numeric values and formatted strings suitable for data catalogs, maps, and reports. Examples include 37.7749, -122.4194 and 37°46'30N 122°25'10W.
Internally, coordinates are parsed into a canonical decimal representation, validated against standard ranges (-90 to 90 for latitude, -180 to 180 for longitude), and reformatted into the target representation with configurable precision. The parsing tolerates common separators and converts DMS with optional whitespace.
Target users include GIS analysts, surveyors, developers integrating coordinates into databases, field technicians, researchers, and educators who teach mapping concepts. The differentiator is robust parsing, strict range checks, hemisphere-aware interpretation, and consistent formatting across formats, with outputs designed for ingestion into data pipelines, spreadsheets, or JSON records.
Core features include input parsing for decimal and DMS, bidirectional conversion, support for single or paired inputs, configurable precision, and outputs in both human readable strings and machine friendly numeric values. The tool gracefully handles ambiguity and returns precise results when inputs meet the defined formats.
Use cases include GIS data cleaning, map preparation, data integration across systems, field data collection, navigation planning, and education projects that require clear, exchangeable coordinate data.

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