Convert GPS Coordinates Between DD, DDM, and DMS Formats
Enter coordinates in DD, DDM, or DMS. The system will auto-detect the format.
Paste multiple coordinates (one pair per line, separated by comma or tab). Example: 0.507068,101.447779
Fetch your current geographic coordinates using your device's GPS.
Privacy Notice: Your location is processed locally in your browser and is never sent to any server.
GPS Coordinate Formatter is a comprehensive, client-side web tool designed to convert geographic coordinates between Decimal Degrees (DD), Degrees Decimal Minutes (DDM), and Degrees Minutes Seconds (DMS). Whether you are a GIS professional, surveyor, or just mapping enthusiast, this tool provides instant offline conversion directly in your browser.
It is a fast, offline-capable tool to parse, validate, and convert latitude and longitude values across various standard GIS formats like DD, DDM, and DMS without needing server uploads.
Simply paste your DMS string (e.g., 0° 30' 25.44" N, 101° 26' 52.00" E) into the input fields and click "Format Coordinates". The system auto-detects the format and converts it using the formula: DD = Degrees + (Minutes/60) + (Seconds/3600).
DD (Decimal Degrees) expresses the whole coordinate as a single decimal. DDM (Degrees Decimal Minutes) separates the degrees and expresses minutes as a decimal. DMS (Degrees Minutes Seconds) splits the coordinate into degrees, minutes, and seconds.
The accuracy of the representation depends on the decimal precision. Defaulting to 6 decimal places in DD provides an accuracy of about 11 centimeters at the equator, which is sufficient for most commercial and professional mapping needs.
Yes, use the Batch Coordinate Formatter feature to paste multiple lines of coordinates. You can instantly export the converted list as a CSV or TXT file.
No. Privacy is guaranteed. All conversions, batch processing, and GPS location fetching are executed 100% locally via JavaScript in your browser.