Radius Around Point

You can use this tool to find the radius around a point on the map. First type in the radius required in kilometers or miles and then click on the map at the center of where you wish the circle to appear. You can then create as many radii as you wish.

Radius Around Point Map

Search For Location :

 Search 

Options

Radius Distance km OR miles
Input Point - do one of...
(1) Click on the map  
(2) Place radius by location name :

 Draw Radius 

(3) Input Coordinates : Latitude and Longitude (decimal)

 Draw Radius 

ExpandColours and Line Thickness

Line Thickness Line Colour Fill Colour
Thin Red Red
Medium Blue Blue
Heavy Green Green
    White White
    Yellow Yellow
    Black Clear

ExpandMap Options

 Zoom to Fit Map 

 Clear Last 

 Clear Map 

[Map Height : Small - Medium - Large - Full Screen]
Show center marker? Show resize grip?
Add label marker: Type text below then click on the marker for which the label should be attached:

Output

Circumference of last circle km miles
Area of last circle km² acres
 
URL to last radius
URL loads full screen?
URL loads unclickable map?
 
Google Maps Static API Image Output
Step 1 : Get the map above to look as you wish (pan/zoom/radii)
Step 2 :

 Generate Your Static Map Code 

 
Google Earth KML Output
Once you have a radius on the map :

 Generate KML 

 
CSV Upload - [latitude,longitude,radius(km)] per line

Click Here to Show/Hide CSV Upload Panel

Instructions

  1. Type in a radius required in the text box above.
  2. [Zoom and Pan to find the required area on the map then click on the map to draw a circle] OR [Type a location into the text box and click Draw Radius] OR [Input the latitude and longitude of the location in decimal format].
  3. Click as many times as necessary to draw multiple circles.
  4. You can use the [Clear Map] button to erase all markers and radii and start again.

Use the "URL to last radius" text box to find a URL that will show the most recent radius on this page when opened in a web browser. This URL can be sent to anyone if you wish to forward it on.

Google Earth KML Output

You can now export all the drawn radii on the map to Google Earth for improved display and printing. You must have Google Earth installed (or another application capable of importing KML files). You need to have a radius displayed on the map before the output will work. Please report any bugs.

The procedure to Export to KML is as follows:

  1. Draw one or more radii on the map as you see fit
  2. Once ready, click the [Generate KML] button. You will probably need to scroll down the page to find this!
  3. After a short delay, a blue hyperlink will appear below the button that reads [Download KML File Here]
  4. Click the hyperlink to download the KML file to your local machine
  5. You can then open the KML file in application such as Google Earth

Currently, the KML will include:

  1. The same radius size and shape
  2. Transparency of 50%

It will not include:

  1. Shading colour (blue only, but you can change this once it is loaded into Google Earth)
  2. Line colour (you can change this once it is loaded into Google Earth)
  3. Line thickness (you can change this once it is loaded into Google Earth)

These features may be added later depending on feedback.

CSV Upload

The CSV option allows you to upload bulk points to the map. To do this you must format your points using the convention of latitude,longitude,radius per line where latitude and longitude are in decimal format and radius in km. Make sure to strip out any whitespace. You can upload as many lines as you wish, however more lines will take more time and every web browser will have its limits on the maximum number of lines (hence circles drawn) before things slow to a halt.

For Example...

51.538611,-0.016389,10
51.538611,-0.016389,15

..should add two radii around the Olympic stadium in London for 10km and 15km

Future Ideas

  • Allow annotation for labeling the radius center point
  • Allow annotation for the radius distance
  • Provide more colours

Version History

  • 7th May 2013 - 2 new options added : URL loads full screen? AND URL loads unclickable map?
  • 13th January 2013 - Label on marker now displays radius. You can now annotate markers.
  • 15th February 2012 - Updates to layout of options
  • 8th January 2012 - Added search for location text box
  • 7th January 2012 - Resolved issue where the specified fill colour was not used if the draw by address or latitude/longitude was used
  • 22nd December 2011 - Added full screen option. Fixed issue when dragging the centre point of a smaller radius
  • 15th September 2011 - Added option to upload CSV text for bulk upload of multiple points
  • 13th June 2011 - Fixed issue with clear fill having the same colour as the previously selected colour
  • 7th June 2011 - Option to hide the resize grip
  • 3rd June 2011 - Radii can now be resized while onscreen
  • 23rd May 2011 - Radii can now be clicked to be drawn inside an existing radius
  • 10th May 2011 - Static map output now uses Google Static Maps API V2. No key required. Will not output an URL > 2048 characters
  • 9th May 2011 - Fixed issue with clear fill having a grey shade
  • 15th April 2011 - Allow the last radius to be deleted (not just all at once)
  • 3rd February 2011 - Export to KML now copes with multiple radii
  • 20th January 2011 - Circumference and area now also output in miles and acres
  • 29th December 2010 - Click on a marker to delete it
  • 29th December 2010 - Allow markers to be dragged
  • 29th December 2010 - Converted to Google Maps API V3
  • 2nd June 2010 - Moved the scale control to the top of map to stop conflict with Google Search bar
  • 27th January 2010 - Added Google Earth KML Output
  • 13th October 2009 - Overlapping radii now supported
  • 29th September 2009 - Added Google Search Bar to map. Added radius display on marker when you hover over the marker
  • 24th September 2009 - Added URL to last radius function
  • 17th September 2009 - Added Google Maps Static API Image Output
  • 3rd January 2009 - Added latitude and longitude input option
  • 29th September 2008 - Added clear fill option
  • 9th September 2008 - Added Place radius by location name option and reworked some other functions
  • 21st January 2008 - Improved circle reliability and added fill colour
  • 15th October 2007 - Added area and circumference output
  • 25th September 2007 - Added different colour's, change thickness, show/hide center marker, change map height and print the page
  • 13th September 2007 - Now works with IE
  • 22nd July 2008 - Added option to use miles as radius input
  • 30th June 2007 - Clear Map button added
  • 29th June 2007 - Page created with basic functionality

Previous Comments For This Page

Hi, you can reset by using the [Clear Map] button inside the Map Options section.
By Free Map Tools on 15/04/2014

very nice tool THX reseting would be nice:-)
On 15/04/2014

very useful site. Thanks
By Saleem on 15/04/2014

Clear Map is hidden inside the Map Options section.
By Free Map Tools on 07/04/2014

I can't find the "Clear Map" button. It isn't on my map, when I try out the "radius" tool.
On 07/04/2014

i need to insert this into a word document
By stephanie on 03/04/2014

Why some time not shown gps way
On 27/03/2014

Hi Becky, Do you have Google Earth installed on your computer?
By Free Map Tools on 27/03/2014

50 miles from Rockville, MD
On 27/03/2014

When you make a mistake and try to 'clear the last one' if you have different radia shaded in different colours, they all get the same colour, which means you have to start from scratch.. not ideal..
On 26/03/2014

After downloading and trying to open KLM download file to export it to Google maps. Microsoft Windows says it cant regonize the KLM download file, so i'm unable to open it the download at the moment. Any advice would be welcome.
By Becky on 26/03/2014

There is no set number, you could have lots of small radius or a few very big radius and you could hit the limit. So it its hard to say. The best advise is to try a smaller radius or use fewer radii.
By Free Map Tools on 25/03/2014

how many marker to put? i've got an error message: "Error, URL is too large! Try a smaller radius or use fewer radii."
On 25/03/2014

It's land miles.
By Free Map Tools on 21/03/2014

Nice App - but are the units Air Miles or Land Miles????
On 20/03/2014

Exactly what I needed, thanks very much!
On 15/03/2014

and a square not just circle
On 13/03/2014

Could not get a circle for 14685 KM around Kuala Lumpur.
On 12/03/2014

Can't move the circles when center markers aren't displayed.
On 08/03/2014

stuck at 1000 km radius. just a time waster
On 03/03/2014

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