Coordinates Converter

Convert GPS coordinates between decimal degrees (DD) and degrees, minutes, seconds (DMS). Enter coordinates in either format and get the other instantly.

The Two Coordinate Formats

• Decimal degrees (DD): 48.858370, 2.294481 — one number per axis, used by most apps, Google Maps and GPX files.
• Degrees, minutes, seconds (DMS): 48° 51' 30.1" N, 2° 17' 40.1" E — traditional format used on nautical and aviation charts.

Both describe the same point. Positive latitude is North, negative is South; positive longitude is East, negative is West.

How the Conversion Works

To go from DD to DMS: the whole number is degrees; multiply the remainder by 60 for minutes; multiply that remainder by 60 for seconds.

To go from DMS to DD: degrees + minutes/60 + seconds/3600, then apply a minus sign for South or West.

Put Coordinates on the Map

Once you have your coordinates, measure the distance between two of them with the distance between coordinates tool, or find the exact halfway point with the midpoint calculator.

Get Distance Tool

Download Distance Tool for iOS and start measuring in seconds.