GPS Coordinates
Convert addresses and GPS coordinates
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GPS Coordinates Guide
WGS84
The standard coordinate system for GPS. Most map services use WGS84.
Degrees Minutes Seconds (DMS)
1 degree = 60 minutes, 1 minute = 60 seconds. e.g., 37° 30' 30" = 37.5083°
Coordinate Format
Latitude ranges from -90 to 90, longitude from -180 to 180. Positive values are North/East, negative are South/West.
Coordinate Precision
6 decimal places gives approximately 10cm accuracy. Generally, 5 decimal places is sufficient.
Latitude
- Latitude represents a position on Earth's surface from the equator, measured in degrees north or south up to 90°.
- The equator is 0°, the North Pole is 90°N, and the South Pole is 90°S.
- Positions north of the equator are positive (+), while south are negative (-).
Longitude
- Longitude represents a position on Earth's surface from the Prime Meridian (Greenwich, UK), measured east or west up to 180°.
- Positions east of the Prime Meridian are positive (+), while west are negative (-).
- The maximum is +180° (180°E) to the east and -180° (180°W) to the west.
Converting Decimal Degrees (DD) to DMS
How to convert decimal coordinates to degrees (°), minutes ('), and seconds (").
- Degrees (°): The integer part of the decimal coordinate
- Minutes ('): Integer part of (decimal part × 60)
- Seconds ("): Remaining decimal part × 60
Example: 37.566535° → 37° 33' 59.53"
Converting DMS to Decimal Degrees (DD)
Formula to convert DMS coordinates to decimal degrees.
DD = Degrees + (Minutes ÷ 60) + (Seconds ÷ 3600)
Example: N 37° 33' 59" + E 126° 58' 41" → 37.566389, 126.978056
* World Geodetic System 84 (WGS 84)