DMS Converter
Convert geographic coordinates between decimal degrees and degrees, minutes and seconds. Paste one coordinate per line in a common notation, such as 52.5200, 13.4050 or 52°31'12"N 13°24'18"E, and the converter detects the format and writes decimal degrees, DMS or degrees with decimal minutes. Built for GPS data, maps, geocaching, aviation and anyone copying coordinates between tools.
Frequently asked questions
Which input formats are recognized?
Decimal degrees such as 52.52, 13.405, degrees and decimal minutes such as 52°31.2'N 13°24.3'E, and degrees, minutes and seconds such as 52°31'12"N 13°24'18"E. The hemisphere letters N, S, E and W may come before or after each value, or you can use a minus sign for south and west instead.
Which output formats can I choose?
Auto converts decimal input to DMS and DMS or DDM input to decimal degrees. You can also force decimal degrees, DMS with seconds to two decimal places, or degrees with decimal minutes to four decimal places.
Do I need the degree and minute symbols?
No. Symbols are optional, and spaces, colons or the hemisphere letters alone are enough, for example 52 31 12 N 13 24 18 E. Typographic primes and quotes such as ′ and ″ are accepted as well.
In which order must latitude and longitude appear?
Latitude first, then longitude, unless hemisphere letters say otherwise. With letters, 13°24'18"E 52°31'12"N is read correctly because E marks the longitude.
How are numbers without symbols split?
The numbers on a line are divided evenly between latitude and longitude: two numbers are decimal degrees, four are degrees and minutes, six are degrees, minutes and seconds. Add hemisphere letters when the two halves use different notations.
Can I convert many coordinates at once?
Yes. Put each coordinate on its own line, up to 10,000 lines, and the result keeps the same order with one converted coordinate per line. Blank lines are skipped.
How precise is the conversion?
Decimal degrees are written with six decimals, about 0.1 meters, seconds with two decimals, about 0.3 meters, and decimal minutes with four decimals, about 0.2 meters. Rounding carries over correctly, so 59.999 seconds never shows up as 60.
What are the valid ranges?
Latitude must be between -90 and 90 degrees and longitude between -180 and 180. Minutes and seconds must be at least 0 and less than 60, and the line of any invalid value is reported.
Which datum is assumed?
The converter only changes the notation and does not transform between datums. Coordinates in WGS84, as used by GPS, stay in WGS84, and the same holds for any other datum.
Why does the output use letters instead of minus signs?
DMS and DDM output always writes the hemisphere letters N, S, E and W, the convention on charts and GPS devices. Decimal output uses a minus sign for south latitudes and west longitudes instead.