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 :

Options

Radius Distance km OR miles OR feet OR meters
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
Latitude / Longitude of center of last circle
 
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),label(1 text character / optional)] 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
  • More options for estimating school catchment areas and distances from schools

Version History

  • 4th May 2015 - Update to allow a resize after using method 2 or 3 to recalculate the Radius Distance
  • 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 Anita Z, Please try to print the radius from Full Screen. So, expand Map Options, click Full Screen, then try Ctrl P. Landscape and A2 page size seem to produce the best results.
By Free Map Tools on 05/02/2016

I really like the radius option but was wondering if I could get it to print? I tried control P but only got a portion of the radius and 2 pages of ads.
By Anita Z on 05/02/2016

Aaron, what you describe sounds like How Far Can I Travel.
By Free Map Tools on 05/02/2016

What would be amazing would be the ability to not only to do a straight radius, as the crow flies, around a point, as this is currently, but rather a "time" radius, around a point. In other words, a shape drawn to enclose the area within xx minutes from a certain point, via any of Googlemaps' transportation methods (driving, walking, biking, etc.).
By Aaron on 04/02/2016

COULD YOU ADD ATTRACTIONS IN
On 03/02/2016

Kent, there is no API as such. Please get in contact and we can discuss what is available.
By Free Map Tools on 03/02/2016

Is there an API
By Kent on 02/02/2016

Where I'd drive for a conciliation.
By John.Doderer@gmail.com on 28/01/2016

thx! it worked with a different web browser
On 27/01/2016

Hi, any tests we do show it working. Im wondering if it is an issue on your web browser? Could you try a different web browser or delete your temporary internet files and try again?
By Free Map Tools on 26/01/2016

the tool (radius on the map) is great but does not work any more. what could be the problem?
On 26/01/2016

None
By Edwin vazquez on 24/01/2016

love your page - Fantastic job! One issue I noticed, I sometimes get runaway scrolling - I can't stop. I don't know exactly what causes it, but if it happens again I will try to identify what I did. Thanks so much for the great page!
By peter wentworth on 21/01/2016

Clear last option entry
On 21/01/2016

Wow. This. Rocks. Hard.
By Clinton on 20/01/2016

DDA LIG Flat, Pocket-C, Molar Band Near All India Institute of Ayurveda.
By Ranjit Kumar Singh on 19/01/2016

Thanks for answering. You are right, I'm drawing an area that is "wraped" around Earth (so if it were stretched, it would be wider than equator). I just tried by correcting for the Earth's curvature and obtained a value of 495,624,302, which is consistent with the area drawn by your program.
By Leandro on 18/01/2016

Hi Leandro, The "Area of last circle" will display the area of the last radius. From what you explain, you have drawn a radius larger than the earths surface (equator is 12,756km) so there must be some for of overlap/wrap around going on which causes some unexpected results.
By Free Map Tools on 18/01/2016

Hi there, awasome tool. I calculated a surface using a circle radius of 17,800 Kms. The drawing looks preety much as I expected, however the surface calculus gave a value of 995,382,216.363. As this is greater than the Earth surface (~510,100,000) I'm unsure about whath the "Area of last circle" value represent. Could you clarify please?
By Leandro on 18/01/2016

Hi, we have recently upgraded the server hardware. This could have something to do with it. Can you try deleting your temporary internet files and load the page again? The page does function fine when tested at this side.
By Free Map Tools on 18/01/2016

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