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Convert between DMS and Decimal Degrees coordinate formats
Geographic coordinates are a system of latitude and longitude used to specify any location on Earth. They can be expressed in Decimal Degrees (DD) or Degrees, Minutes, Seconds (DMS) format.
Latitude
Longitude
40.712778, -74.006111
Decimal Degrees
| City | Lat/Lon | DD |
|---|---|---|
| New York | 40.7128° N, 74.0060° W | 40.7128, -74.0060 |
| London | 51.5074° N, 0.1278° W | 51.5074, -0.1278 |
| Tokyo | 35.6762° N, 139.6503° E | 35.6762, 139.6503 |
| Sydney | 33.8688° S, 151.2093° E | -33.8688, 151.2093 |
| Rio de Janeiro | 22.9068° S, 43.1729° W | -22.9068, -43.1729 |
Formula
DD = Degrees + Minutes/60 + Seconds/3600Degrees = whole number of degrees (0-90 for lat, 0-180 for lon)
Minutes = arc minutes (0-59), each equal to 1/60 of a degree
Seconds = arc seconds (0-59.99), each equal to 1/3600 of a degree
Worked Example
Convert 40°42'46"N to Decimal Degrees
Did you know? One degree of latitude equals approximately 69 miles (111 km) everywhere on Earth. One degree of longitude varies from 69 miles at the Equator to 0 miles at the poles due to meridian convergence.
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