Free Coordinate Conversion Tool

DMS to Decimal DegreesCoordinate Converter

Transform DMS (Degrees, Minutes, Seconds) coordinates to decimal format with precision.

Enter DMS Values

Input degrees, minutes, and seconds for both latitude and longitude coordinates.

Degrees° Minutes′ Seconds″ Direction

Degrees° Minutes′ Seconds″ Direction

Result

Ready to Convert

Enter DMS values and click Convert to see decimal results here

What is Decimal Degrees?

Decimal Degrees (DD) is a widely-used notation system for expressing geographic coordinates as decimal fractions. Unlike the DMS format, DD represents latitude and longitude using simple decimal numbers, making calculations and digital mapping applications more straightforward.

+/−

Sign Convention

Positive values indicate North (latitude) and East (longitude). Negative values represent South and West directions.

0.000000

Decimal Format

Coordinates are expressed as decimal fractions, typically to 6 decimal places for precision up to 0.11 meters.

  • Latitude range: -90° to +90° (South to North)
  • Longitude range: -180° to +180° (West to East)

Example: New York City can be represented as 40.7128° N (latitude) and -74.0060° W (longitude) in decimal notation, which is equivalent to the DMS coordinate of 40° 42' 46” N, 74° 0' 22” W.

This format is the standard for GPS devices, web mapping services, GIS software, and most modern navigation systems due to its computational efficiency.