A coordinate converter changes the written form of a latitude and a longitude. This coordinate converter has two forms: decimal degrees, and degrees, minutes, and seconds with a hemisphere letter. It does not look up an address, open a map, read the device location, shift a datum, or measure a distance. One latitude and one longitude are converted together so a pair stays a pair.
Decimal latitude must be from −90 to 90. Decimal longitude must be from −180 to 180. Both 180 and −180 are accepted. The page does not rewrite 180 into −180 or wrap a value that falls outside the range. An out-of-range number is an error.
In degrees, minutes, and seconds, degrees are a non-negative whole number, minutes are a whole number from 0 to 59, and seconds are from 0 up to but not including 60. The hemisphere letter supplies the sign: N or S for latitude, E or W for longitude. A minus sign together with a letter is rejected, because the sign would be stated twice. A date such as 2026-01-01 is not a coordinate and is rejected.
Decimal results are shown with exactly 6 digits after the decimal, rounded half away from zero. Seconds derived from a decimal are shown with exactly 4 digits, also half away from zero. If those seconds round to 60, one minute is carried. If the minutes then reach 60, one degree is carried. If that carry would leave the legal latitude or longitude range, the conversion stops with an error instead of wrapping or clamping. A round trip through the displayed text is not exact. Formatting and the carry rules can change the last digits.
Empty fields fail. Minutes outside 0–59 fail. Seconds below 0 or at 60 or above fail. The wrong hemisphere for an axis fails. Enter runs the conversion from a text field or a list. Results are two lines, latitude and longitude, in the destination form.
40° 26′ 46″ N converts to latitude 40.446111. 0° 0′ 0″ E converts to longitude 0.000000. The decimal latitude 40.446111 converts back to 40° 26′ 45.9996″ N. The last digits are not identical to 46 seconds, and the page does not promise that they will be. 90 is 90° 0′ 0.0000″ N. −90 is 90° 0′ 0.0000″ S. 180 is 180° 0′ 0.0000″ E. −180 is 180° 0′ 0.0000″ W.
40° 26′ 46″ N = 40.446111
0° 0′ 0″ E = 0.000000
40.446111 = 40° 26′ 45.9996″ NPeople paste a GPS pair into a form that wants decimal degrees while the source is written as degrees, minutes, and seconds, or the other way around. This page does that format change and stops. It will not tell you which place a coordinate names. It will not correct a transposed latitude and longitude. If the source already printed a hemisphere, use the letter. Do not also type a minus on the degrees.
Zero latitude is north in the decimal-to-seconds direction when the number is not negative, and zero longitude is east. A value of exactly 90 or exactly 180 is inside the range. A value just past either limit is not quietly moved back onto the limit. Seconds are never shown as 60. The carry into minutes or degrees is visible in the result, or it is refused when the carry would pass the pole or the antimeridian.
Keyboard users can change the direction, type each component, and press Enter to convert. The two directions are separate fields so a decimal is not parsed as minutes by mistake. Switching direction clears the previous result until you convert again.
Latitude is −90 to 90. Longitude is −180 to 180. 180 and −180 are both kept. The hemisphere letter sets the sign. Decimal degrees show 6 digits. Seconds show 4 digits. A round trip through the displayed text is not exact.
No. It only changes decimal degrees and degrees, minutes, and seconds for one latitude and one longitude.
Both are accepted. 180 stays east and -180 stays west. The page does not rewrite one into the other.
Seconds are shown to 4 decimal places. A round trip through that text is not exact.
No. Degrees, minutes, and seconds stay zero or positive. N, S, E, or W sets the sign.