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.

[12th July 2018] Unfortunately, due to a large price increase in back-end services, we can no longer offer some features on this page or have had to use alternative providers.

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 (4) Draw at your location Current Location Colours and Line Thickness Line Thickness Line Colour Fill Colour Thin Red Red Medium Blue Blue Heavy Green Green White White Yellow Yellow Black Clear Map 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:

Map Layers USA County Borders Input CSV Upload [latitude,longitude,radius(km),label(1 text character / optional)] per line latitude,longitude,radius(km) For Example... 51.538611,-0.016389,10 Upload Click Here to Show/Hide CSV Upload Panel 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

Instructions

Type in a radius required in the Radius Distance text box above [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]. Click as many times as necessary to draw multiple circles 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:

Draw one or more radii on the map as you see fit Once ready, click the [Generate KML] button. You will probably need to scroll down the page to find this! After a short delay, the KML file with download You can then open the KML file in application such as Google Earth

Currently, the KML will include:

The same radius size and shape Transparency of 50%

It will not include:

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

Ability to input nautical miles

URL link includes settings to show/hide the radius centre marker and resize grip

URL link to include the data for multiple radius

KML export improved to cope with 100's / 1000's radius

Ability to customise the center marker

Version History