DMS to Decimal Degrees Converter
Convert coordinates between degrees-minutes-seconds and decimal degrees, both ways. Paste 25°11'49.9"N or 25.1972 and get every format.
How it's calculated
A coordinate written as degrees, minutes and seconds (DMS) splits each degree into 60 minutes and each minute into 60 seconds.
- To decimal degrees: degrees + minutes ÷ 60 + seconds ÷ 3600. South latitudes and west longitudes become negative.
- To DMS: the whole number is the degrees; multiply the rest by 60 for minutes, and the remainder by 60 again for seconds.
- Degrees and decimal minutes (used by many GPS units and nautical charts) keep the minutes as a decimal instead of splitting off seconds.
For example, 25°11'49.9"N is 25 + 11 ÷ 60 + 49.9 ÷ 3600 = 25.1971944°.
Frequently asked questions
Which formats can I type?
Decimal degrees (25.1972 or -55.27), degrees and decimal minutes (25 11.832 N), or degrees, minutes and seconds (25°11'49.9"N, N 25 11 49.9 or 25d11m49.9s). Symbols are optional, and Arabic-Indic digits work too.
How are south and west written?
Either with a minus sign (-33.86) or with the letter S or W (33°51'S). South latitudes and west longitudes are negative in decimal degrees.
How precise is the result?
Decimal degrees are given to 7 places, about 1 cm on the ground, and seconds to 2 places, about 30 cm.