Convert Latitude and Longitude

Nowadays, GPS localization is common. Some apps use decimal format (48.85833) while others return the coordinates in degrees, minutes and seconds (48°51'29.99'').

In this article I will show you how to convert from one format to the other and vice-versa.

Add GPS coordinates to address

If you are looking to add GPS coordinates to an address, please go to this page.

How to write a GPS coordinate in Excel

GPS coordinates are generally written using the symbols ° (degrees), ' (minutes), and '' (seconds).

But if you keep your coordinate as a string, no calculation is possible. So it will be impossible to convert the GPS coordinates ⛔⛔⛔

What is the best way to write a GPS coordinate?

Use the following format for your GPS coordinates - hours:minutes:seconds. Each part of the coordinate should be delimited with a colon ":"

48:51:29.99

The default cell display could be different depending on the version of Excel that you are using. It can display the GPS coordinates as either a date or a time.

Don't worry, we will correct this formatting soon 😉😎😃

Insert a negative time

The standard GPS coordinate is:

  • positive for East and North
  • negative for West and South

Unfortunately, Excel doesn't accept a negative time, so you need to wrap it in double quotes as though it were text. Then put a minus sign before the opening quote.

=-"74:02:40.29"

But the cell content is displayed as a string of #

Excel doesn't like negative time. But you can correct this by checking one option in  Excel.

  • Go to the menu File>Options
  • Select Advanced
  • At the bottom of the list of options, check the option "Use 1904 date system"

Customize the time format

Now, let's customize the format of our cell:

  • Open the Format cell dialog box (Ctrl + 1)
  • Select the option Custom
  • In the Type box, enter this format code exactly as it is displayed below

[hh]°mm'ss.00\

The hour between square brackets is compulsory to display a value over 23 hours.

Convert coordinates from DMS to decimal

Because we have written the coordinate as a number, we just have to multiply the cell by 24 (24 hours in a day).

And the the conversion is finished 😍😍😍

=B3*24

Then just change the format of the cell range D3:E7 to General.

Convert coordinates from decimal to DMS

And the other way round, to convert a decimal value to degrees, minutes and seconds, simply divide the value by 24.

= B3/24

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4 comments

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    • floyd on 09/07/2019 at 08:37
    • Reply

    Been reading so many VBA scripts on how to do this DMS to DD conversion within excel
    And even Microsoft's publication of their own VBA script on how to do this
    https://support.microsoft.com/en-ca/help/213449/how-to-convert-degrees-minutes-seconds-angles-to-or-from-decimal-angle
    Even does the calculation part wrong

    Wasted so much time trying to remedy their script, and read other scripts on the internet.
    Your solution was implemented in 1 minute, so so simple, and brilliant.
    Thank you again so much for posting this.

    1. Thanks 🙂

  1. GENIUS!! Thanks for sharing
    Btw: it misses a double quote at the end of the formula written in black background ([hh]°mm'ss.00\" )

    • rajeshwar pilli on 02/06/2018 at 11:07
    • Reply

    kindly provide me any kind of excel format or program for convert arbitrary coordinates to GPS coordinates.

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