Lat Long Converter

Paste one pair of coordinates per line. We convert between decimal degrees, degrees minutes seconds and degrees decimal minutes. Nothing is uploaded: the conversion runs in your browser.

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Accepted: signed decimals, N S E W letters before or after, and degree, minute and second marks. A decimal comma works when a semicolon or a space separates the pair.

Opening a map link sends that one point to the map provider. Nothing else leaves your browser.

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Decimal degrees, DMS and DDM at a glance

The same point, New York City, written three ways. Pick the format your map, GIS tool or device expects.

One coordinate in three formats
FormatExampleCommon use
Decimal degrees (DD)40.7128, -74.0060Web maps, GPS trackers, spreadsheets and APIs
Degrees, minutes, seconds (DMS)40° 42′ 46.08″ N, 74° 0′ 21.6″ WPrinted maps, surveys and legal descriptions
Degrees, decimal minutes (DDM)40° 42.768′ N, 74° 0.36′ WMarine and aviation devices

How to convert decimal degrees to DMS

  1. The whole number is the degrees: 40.7128 gives 40°.
  2. Multiply the decimal part by 60: 0.7128 × 60 = 42.768. The whole number is the minutes, 42′.
  3. Multiply the new decimal part by 60: 0.768 × 60 = 46.08. That is the seconds, 46.08″.
  4. Add N for a positive latitude and S for a negative one. Longitude uses E and W.

So 40.7128 becomes 40° 42′ 46.08″ N.

How to convert DMS to decimal degrees

Add the degrees, the minutes divided by 60 and the seconds divided by 3,600. South and west values are negative.

40° 26′ 46″ N = 40 + 26 / 60 + 46 / 3600 = 40.446111

What the converter accepts

  • One pair per line, latitude first, separated by a comma, a semicolon or a space.
  • A letter N, S, E or W before or after each number. With letters, the order of the pair can be longitude first.
  • Degree, minute and second marks as symbols (° ′ ″), as quotes, or just spaces.
  • A header line with lat and lng is skipped. Lines that cannot be read are listed with their line number.

FAQ

Frequently asked questions

Latitude comes first: 40.7128, -74.0060 is latitude 40.7128 north and longitude 74.0060 west. When you add N, S, E or W letters, this converter also reads a longitude-first pair correctly.

Four decimals locate a point to about 11 metres, five to about 1.1 metres and six to about 0.11 metres. Six is plenty for vehicle and delivery work.

It keeps whole degrees and writes the minutes as a decimal, for example 40° 42.768′ N. Many marine and aviation devices print this format.

Yes. Paste one pair per line. You can convert 10 pairs right away. Confirm your email to convert up to 1,000 at once and download the result as a CSV.

No. The conversion runs in your browser. If you open a map link, that one point is sent to the map provider.

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