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

Brilliant ... would you be able to indicate the 'heading' in degrees of the line between the two points?
By figflower on 29/08/2014
On 29/08/2014
cool. used it to calculate my running routes:)
By oz on 28/08/2014
Brilliant! My husband has a Garmin. I'd rather spend 100 on shoes & use this excellent tool
By Denise on 27/08/2014
Below the map
By Daft Logic on 17/08/2014
put in the two points, where is the distance?????????????????????????????????
On 16/08/2014
great tool. thank a lot .
By amir irani persian on 15/08/2014
I've used the tool to calculate distances at Disney World. It was very useful!
By Bill on 12/08/2014
I am a private pilot. Great tool for preflight planning !!!
By Mike Smith on 09/08/2014
i used this to calculate the closest public school.. works a treat, google should buy this program.
On 06/08/2014
Worked really good for me creating driving direction with mi. from street to street. Love it.
On 02/08/2014
I use it for sailing, it is great!! May I suggest to add the distance between every two waypoints? Thank a lot
By Paolo on 27/07/2014
Broken, not functioning as of 07/25
On 25/07/2014
Great tool I use it to find distance between two points as I race racing pigeons I can work out their speed by dividing time taken to fly into distance
By black pied on 21/07/2014
I am a professional mariner. I use this excellent tool for voyage planning regularly.
On 20/07/2014
can i take a code on it !! plsss? i need for my project !! .. in our GIS
By jhubeer on 19/07/2014
I love using your tool to map out a 5 km route for running in my neighbourhood. Thank you!
On 18/07/2014
will there be an option to plan and download route waypoints onto a gps?
On 16/07/2014
Hi Buz, unfortunately this information is not available.
By Daft Logic on 14/07/2014
When looking at the Satellite Earth Pictures how can we see the date the image was taken??? Buz
By Buz on 14/07/2014
Thanks for the really great tool. I use it a lot to find distances between mountain peaks and to the offshore islands. Two requests: Can you add an option for standard units to the elevation plot and add a feature which updates the elevation plot as you move the markers? Thanks!
By Norm on Mt. Wilson on 09/07/2014
Works nicely! Thank-you!
By The Bowx on 09/07/2014
i dont think this thing works better do it with technology increase
On 07/07/2014
I think you guys should make an app for android and App Store great app to use when I need to figure out my runs for HS cross country couldn't have made the app any better
By John Doe on 29/06/2014
I use this to measure the distance of my homeruns
On 26/06/2014
By FAUSTO on 25/06/2014
Fabulous tool -exactly what I needed for an 'as the crow flies" estimate of the distance to my nearest cell phone tower. What would be brilliant would be a compass bearing from point A to point B and an elevation bearling so that I can precisely set up my directional yagi antennae. Great work team. I hope that Google buy your application for millions!!
By John Malcolm on 19/06/2014
Hi Josephine, you can use the map to find each place, then click to place a marker. It will then calculate the distance between them.
By Daft Logic on 15/06/2014
I am looking for the distance from the backet ball arena in Tallaght to Dundrum and also the distance from Cork Street to Dundrum.Could you help me?
By Josephine Healy on 15/06/2014
Useful tool for school, calculating the size of the school field!
On 10/06/2014

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