Free Map Tools

Instructions

To use the area calculator tool:

• Zoom and pan the map to find the area of interest
• Click on the map to place a vertices for the polyline
• Click as many time as necessary to define the polyline

The area enclosed will them be output in square meters and square kilometers

You can click the [Delete Last Point] button if you make a mistake or click [Clear All] points to remove all points from the map and start again.

You can also reposition the markers after they have been placed on the map by dragging and dropping them.

Information

The area calculator tool allows you to find out the area that is enclosed inside a closed polyline overlaid on a map.

Benchmarks

A measurement of Lough Neagh in Northern Ireland. Lough Neagh is reported to have a surface area of 388 km² [1] , so the reading of 380 823 442m² isn't far off.

Future Uses and Ideas

• Allow the user to change the colour of the polylines and area shading (including transparent)
• Allow the option to have more than one area on the map at the same time
• Option to show/hide markers
• Output the length of the perimeter
• Add a quick find option to zoom in to the region without much panning and zooming
• Add square feet output

Version History

• 21st February 2013 - Added square feet output
• 8th January 2012 - Upgraded to Google Maps API V3 and some new features
• 20th July 2010 - Added crosshairs and option to switch on/off crosshairs
• 17th June 2010 - Added upload KML option (beta)
• 2nd June 2010 - Moved the scale control to the top of map to stop conflict with Google Search bar
• 2nd February 2010 - Added perimeter output in meters and kilometers
• 25th March 2008 - Draggable markers, ability to click inside polygon and output in acres added
• 26th June 2007 - Basic area calculation added
• 24th June 2007 - Page created

I agree, if you could upload a picture, of say a plot plan of a lot, and specify the length of one property line or something so the program knows the scale, that would be incredibly useful to alot of people.
By V on 12/04/2013

Is there a chance to download the picture image of the plotted area? Which would be very much helpful indeed
By yasar on 11/04/2013

I'm not convinced that the area calculation is acurate. I measured my own land which is surveyed by a surveyor on ground and compare to the nos given by this tool, this tool shows 40% less to what on ground. I tested with 4 diff locations and none really match. Appreciate if this is tested; otherwise this is a great tool!!
By Sekhar on 11/04/2013

very good Thanks!
By Ramin J on 05/04/2013

MY HOME PERIMETER!
By DENIS on 29/03/2013

Great tool...saved me hours!
By Dave on 26/03/2013

My favorite overall tool on the web, period! Would love to have the added suggestions, KML exportation and shading color selection. It would make this tool A . Thanks!
By Jeff on 24/03/2013

Great and very smooth. Recommend adding KML export option.
On 19/03/2013

Is there any option to print the marked area with the details of area given below??
On 18/03/2013

Great tool - simple yet powerful ! Would suggest to add asap, 1. 'Print report' feature 2. 'Save' feature, so you can upload and modify later on, etc/. 3. Search should allow to enter coordinates 4. map area box should be larger 5. align decimals - easier to read (output info) trust this helps !
On 07/03/2013

preserve total acres
By chad on 04/03/2013

I have just found this site I think it is wonderful. I have checked it's accuracy and it is very good, well done.
By Chris Loveday on 02/03/2013

very good work-finding area
By K Suseelan on 01/03/2013

Very handy tool. Had problems with KML upload. No complaints. I notice this is a Beta version -- the KML feature. Thanks
By David Buglass on 27/02/2013

Works good, however, an english/metric option would be nice, including straight line measurements (point a to point b).
By John on 26/02/2013

Works good, however, an english/metric option would be nice, including straight line measurements (point a to point b).
By John on 26/02/2013

Works good, however, an english/metric option would be nice, including straight line measurements (point a to point b).
By John on 26/02/2013

excellent page
By liaqat ali on 26/02/2013

does anyone else find the Blackberry add super annoying. I use this program on a daily basis... If this continue i will change program, there are other area calculating programs out there. and just for the record, I will never be caught dead with a blackberry!
On 22/02/2013

Mark M., we have now added square feet output.
By Free Map Tools on 21/02/2013

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