Logic, but in a different way

Daft Logic

Distance Calculator

Last Updated 25th January 2014

[Map Height : Small - Medium - Large]

Search For Location :

Use search result as a distance marker? Yes No

Total Distance Miles km Nautical Miles Metres Feet Autopan ?

Upload Coordinates

Please paste in the list of coordinates to add to your route in the text box below:


You can use the Google Maps Distance Calculator to find out the distance between two or more points anywhere on the earth. In other words, the distance between A and B. Click once on the map to place the first marker and then click again to position the second marker. The mileage between the points will then be displayed. You can also build up a series of locations to find a total distance.

An important feature of this distance calculator tool is that is "as the crow flies", so traveling in real life will normally involve larger distances, but this may also help those who need to measure off-road distances.

Want to save your route? Try the Advanced Google Maps Distance Calculator

How To Use

  1. Zoom and drag the map to find the location of marker 1
  2. Click to place marker 1.
  3. Zoom and drag the map to find the location of marker 2.
  4. Click to place marker 2.
  5. The distance will be calculated then displayed below the map in miles or kilometers. You can change between miles or km at any time
  6. Add as many points as required and the distance will build up.
  7. You can also drag and drop markers after they have been put on the map
  8. To share your route and distance calculation use the option [Generate Link For This Route]. You can then copy the link generated and send this via Twitter or Facebook.


All distances are estimations so Daft Logic does not accept any responsibility that may arise when the value reported is incorrect.

You can move the markers after they have been positioned so you can modify you route on the fly and see how the distance will be effected.


How it Works

Clearly you, the user inputs two 'points' that are used to calculate the distance. Calculating the "As the Crow Flies" distance is a matter of using Great Circle formula. Then the main problem is converting the Google Map unit to miles and kilometers.

The map will also automatically save your route in your temporary internet cookies so that you can return and see the route as you last left it. If you ever need to start from scratch then use the [Clear Map] button.

Benchmark Tests

Mary Peters Track in Belfast
Map showing the Mary Peters Track in South Belfast. The reading shows 0.394km which is clearly a reasonable measurement for an athletics track.
Map between New York and Paris
Map showing the estimated distance between New York and Paris. All references that can be found suggest that this is an accurate measurement.
Seven Mile Straight in Antrim
Map showing the Seven Mile Straight in County Antrim, Northern Ireland. This shows a reading of 6.910 miles.
Map between Belfast and Dublin
Map showing the distance between Belfast and Dublin. As far as I can see this is an accurate estimate (if there is such a thing). This trip would be approximately 100 miles by road so the proverbial crow would have less distance to travel.

Relevant Links

Google Maps API

Further Uses and Ideas

Version History

Version Date Description of Updates
1.0 29/12/2005 The Beginning
2.0 19/01/2006 Stop post back between clicks
Calculate Mid Point
Zoom to fit feature
More than one marker as running total
3.0 15/06/2007 Move to API v2
Great Circle display and distance calculation
Option to resize map height
3.1 25/09/2007 Added print map option
3.2 01/10/2007 Added Quick Find
4.0 20/01/2008 Added Scroll Wheel Zoom in and out
Complete conversion to API v2
Better Zoom to Fit Functionality
Added crosshairs curser
4.1 21/02/2008 Removed Scroll Wheel Zoom in and out
Added marker drag and drop functionality
Removed Print Option (Ctrl+Print Screen works better)
4.2 10/06/2008 Added Nautical Miles option
4.3 20/10/2008 Added drop down map type option
4.4 17/12/2008 Map saves last position for when you next visit
4.5 04/01/2009 Fixed autopan issue when map is resized
4.6 28/09/2009 Removed Quick Find
Added Google Search bar
4.7 06/10/2009 Brought Back Quick Find!
Removed Google Search bar!
Added Route Autosave via cookies
Added Marker tooltip showing marker id and lat/lng
Added Feet measurement
Added Metres measurement
4.8 08/10/2009 Google Search can now be enabled by a check box
More settings are now saved such as toggle markers, Google Search and Map Type
5.0 31/07/2010 Implemented Google Maps Javascript API V3
Google Search bar at bottom left is not yet available. sorry!
Removed show mid point button
Uses new cookie so any previous systems/settings on your machine will be erased! sorry!
Please report any issues or bugs!
5.1 02/08/2010 Fixed autopan issue when map is resized
5.2 09/08/2010 Updated Quick Find. Now places marker at location
5.3 31/07/2010 Updated Quick Find. Now adds a distance marker upon finding a result unless the user opt's out of this
Updated Quick Find. Now allows enter/return to be hit to cause the search. No need to click the Search button
Updated Quick Find. Now pre-selects text after a search is complete to allow rapid input of multiple locations
Updated Quick Find. If you perform an unattached search (not a distance marker), the search result marker can be easily removed from the map by clicking on that marker
5.4 05/02/2012 Updated Quick Find. Now zooms in to find the location
5.5 14/02/2012 Fixed issue where a marker that had been repositioned retained its original lat/lng in the text that appears during hover over
5.6 15/02/2012 Added new upload coordinates function
5.7 10/11/2013 Removed Google Local Search API (Deprecated)
5.8 22/01/2014 New option added to allow you to share your distance calculator route on Twitter, Facebook or email
5.9 25/01/2014 New option added to show the elevation of your route on a bar chart

Previous Comments For This Page

con Tornado 38 c.ca 450 litri di carburante e 4 ore di navigazione a 38 nodi
By Riccardo on 16/04/2014
giangi90, it isn't possible right now to do such a task but we will look in to it.
By Daft Logic on 14/04/2014
Great App!!! I have a question is there a way to give as a input several locations and then compute the distance for each pair of location?
By giangi90 on 14/04/2014
very good app!
By boat on 10/04/2014
This is very helpful thank u so much team.
By Andy on 08/04/2014
Great job! .... Well, i also found some good deals from the ads you guys have on this site! ... keep up the great work!
By Jesse on 07/04/2014
Loves this. Helps me to see how many km my runs are!
On 05/04/2014
good job
On 05/04/2014
On 30/03/2014
great tool!
On 27/03/2014
very instrested app
By Allah yar khan on 26/03/2014
This is freaking awesome!
By Junior on 25/03/2014
Food service
By Gianni on 24/03/2014
I love this! Helps me map out my runs :)
By LoloLala on 21/03/2014
On 20/03/2014
Very useful! Thanks for this tool!
By MC on 20/03/2014
I adore this tool! I have a hobby of making maps based on data, and this made it all much simplier! Amazing job. One suggestion would be to make the "Zoom to Fit" toggable, so that you could always leave it on, or off.
By Zidanie5 on 20/03/2014
driving distance...roads? I can't fly so as the crow flys is worthless to me.
On 19/03/2014
i'm making a college project for that i need this api so can you send me the code of this particular distance calculator api ...
By SAURAV on 14/03/2014
I think I'm the first from Fiji to use this site - love it and highly recommend to all those needing distance/time data before travelling :)
By John Jiare on 10/03/2014
Love it! Our teachers use it for school all the time!
On 10/03/2014
So is there actually a place to download this software?
By Albert Welter on 08/03/2014
wonderful & innovative . I congrats the team !!
On 05/03/2014
"Search for location" What about from and to...
On 01/03/2014
Hi MourningStar , the Advanced Google Maps Distance Calculator allows you to do save a route and reload.
By Daft Logic on 27/02/2014
Is it possible to save to a file? If not is there an alternate app that does this? I would like to have multiple routes saved in a folder and then be able to re-load them 'at will'. -thx
By MourningStar on 27/02/2014
Wao, this tool has helped in my research a lot is obtaining distances and using that to calculate time based on the given speed limit
On 19/02/2014
Additional benchmark test: Wembley stadium football pitch lenght: 104.5 m According to wikipedia: 105m
By Tom on 19/02/2014
Hi, the elevation chart should now work again.
By Daft Logic on 17/02/2014
Oh My do I need Ver 5.9 - Update - New option added to show the elevation of your route on a bar chart. I sure do wish I could make it work. I click the Elevation button.. nothing happens. I change all of the measurement definitions, try a new location with more dramatic elevations, make long distance calculations, short distance calculations, nothing works. I assume all I need to push the button.
By Zubinell on 17/02/2014

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