GPS units, maps and apps use different coordinate formats: Google Maps shows decimal degrees, nautical charts use degrees and decimal minutes, and land surveys often use degrees, minutes and seconds.
How to use the Coordinates Converter
- Latitude
- Longitude
Everything runs in your browser, so results appear instantly and nothing you type is sent to a server.
How it works
Your input is parsed (with or without symbols), checked against the valid range and then written in all three formats.
Formula
DD = degrees + minutes ÷ 60 + seconds ÷ 3,600 (negative for S and W)Worked example
Inputs — Latitude: 40° 26′ 46″ N; Longitude: 79° 58′ 56″ W.
Results — Decimal degrees = 40.446111, -79.982222; Latitude (DMS) = 40° 26′ 46.00″ N; Longitude (DMS) = 79° 58′ 56.00″ W; Degrees, decimal minutes = 40° 26.7667′ N, 79° 58.9333′ W.
Frequently asked questions
Which format does Google Maps use?
Decimal degrees, e.g. 40.446111, -79.982222.
Are south and west negative?
Yes, in decimal degrees.
How precise is 6 decimal places?
About 0.1 m.
What formula does the Coordinates Converter use?
DD = degrees + minutes ÷ 60 + seconds ÷ 3,600 (negative for S and W).