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)] 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

  • 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 Ubica, the map uses Mercator projection. [https://developers.google.com/maps/documentation/javascript/maptypes#WorldCoordinates]
By Free Map Tools on 25/05/2015

What projection are you using for radius calculation?
By Ubica on 24/05/2015

When I zoom or scroll it thinks I want to plot. Pease fix it!
By DXFinder on 22/05/2015

Hi Paul, please have a look at How Far Can I Travel.
By Free Map Tools on 21/05/2015

Hi Sarah, you can show to the full screen mode (option hidden inside Map Options), then print from your browser or do a screenshot.
By Free Map Tools on 21/05/2015

How can I print the map with the radius showing? I need to have a printout.
By Sarah on 20/05/2015

would be awesome to have capability to draw radius based on road mileage. Meaning, if i am willing to drive [50] miles from a point how far can i go in all directions. yes I agree and I would add - to put the cherry on the cake : Include a "time" option. I mean allow the user to draw a shape around a point and everywhere within that shape is less than 1 hour from the point (for example)
By Paul on 19/05/2015

Magnitude 2.1, Kermanshah Province Tuersday, May 19, 2015 at 03:58:59 (UTC)
On 19/05/2015

25 mile radius of warwick 02886
By robert corrigan on 18/05/2015

You can print the map if your switch to full screen and take a screenshot
By pk on 14/05/2015

thanks for create this tool for this world.
By thongchart trasin on 12/05/2015

very helpful - yet agree with other comments, please make easier to print.
By DRG on 01/05/2015

Hey I was wondering if you could make your maps more printer friendly, thanks!
By Nikki on 29/04/2015

Wow, very helpful. Thank you!!!
By David on 28/04/2015

hello i was able to plot all 3 plot points I needed, but now when i try generate the static map code, its says URL error to large try with smaller radi, how can i fix that if possible?
By monique on 25/04/2015

monique, to start with can you see the map on the page? has it loaded? If you type Seattle in to text box number 2 and click Draw Radius, what happens?
By Free Map Tools on 23/04/2015

No, I can't even get the first point. Help on how to get the first point would be great, I need to plot 3 points, one in Seattle, New York and Mexico city
By monique on 23/04/2015

Hi monique, is it working with one point?
By Free Map Tools on 22/04/2015

i need to plot 3 different points, but its not working, does anybody know how i could do that with this sight, PLease help
By monique on 22/04/2015

Hi, there is a Full Screen option if you expand the Map Options section.
By Free Map Tools on 19/04/2015

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