Google Maps Area Calculator Tool

Use the Google Maps Area Calculator Tool to draw an area on a map and find out the measurement of the enclosed area. You are also able to save your areas for use later on. Click on the map to start drawing

[Map Height : Small - Medium - Large - Full Screen]

Output : Current Area

0 m² | 0 km² | 0 acres | 0 hectares | 0 feet² | 0 square miles | 0 square nautical miles

Add a location manually (also accepts [latitude,longitude])


How to Use

  • Click multiple times around the map to define an area
  • The calculated area will then be displayed below the map

Other Options

  • Click [Delete Last Point] to remove the last point clicked
  • Click [Clear All Points] to remove all areas drawn
  • Click [Generate KML] to generate a KML file representing the last area drawn. Once you click this option, after a short delay, a hyperlink "Download KML File Here" will appear. From this link, you can download your KML file
  • Click [Create New Area] to start drawing anew area whilst keeping any existing areas on-screen
  • You can adjust the map size by clicking Small, Medium, Large or Full Screen
  • Click [Export Lat/Lng] to export a list of latitude and longitude coordinates to a text box below the map. You can then copy and paste these to an external system.

Login to Save and Load Maps

You can create an account for free from which you can save and load saved areas unique to you. Click [Create Free Account] to create a new, free account. Once you confirm your email, you will be able to save and load maps while logged in.

Keyboard Shortcuts

  • l - Delete Last Point - Windows : (Alt+l) - Mac (Ctrl+Alt+l)
  • a - Clear All Points - Windows : (Alt+a) - Mac (Ctrl+Alt+a)
  • n - Create New Area - Windows : (Alt+n) - Mac (Ctrl+Alt+n)
  • z - Zoom to fit - Windows : (Alt+z) - Mac (Ctrl+Alt+z)
  • t - Toggle Markers - Windows : (Alt+t) - Mac (Ctrl+Alt+t)
  • s - Toggle Full Screen Off and On - Windows : (Alt+s) - Mac (Ctrl+Alt+s)

Relevant Links

Google Maps API

Future Uses and Ideas

  • Allow multiple areas to be added to a project, saved then loaded afterwards
  • Allow upload a KML file and calculate any areas of polygons inside
  • Allow export of lengths of perimeter sides
  • Allow different color schemes for additional output areas rather than just one
  • The ability to select an area as an entirety and drag it around, copy/clone/duplicate it
  • Option to subtract sub area from main area

Version History

Version Date Description
Version 1.0 14/11/2007  
Version 2.0 25/03/2008  
Version 2.1 16/10/2008 Added Terrain map type
Version 2.2 14/12/2009 Added quick find search tool
Version 2.3 21/03/2009 Added acres output
Version 2.4 04/11/2009 Increased maximum size for the Quick Find option
Version 2.5 28/01/2010 Added square nautical miles output. Rounded off all output to 2 decimal places
Version 2.6 22/02/2010 Added square feet output.
Version 2.7 12/10/2010 New option to input points manually by lat/lng pairs.
Version 3.0 01/12/2010 Implemented Google Maps API V3
Version 3.1 19/12/2010 Added option to export to KML (Google Earth)
Version 3.2 17/02/2011 Added option to draw more than one area in the same session
Version 3.3 07/06/2011 Fixed Issue with last polyline not showing on KML output
Version 4.0 08/09/2011 Ability to save areas under user login
Version 4.1 14/12/2011 Added hectares output
Version 4.2 22/12/2011 Added full screen option
Version 4.3 05/02/2012 Improved Search Facility
Version 5.0 12/11/2012 Added perimeter output
Version 6.0 05/01/2013 Default map is now larger
Download KML File Here link has been moved
Added Zoom to Fit button
Fixed bug with perimeter calculation
Version 6.1 29/06/2014 Added option to change fill and line colours
Version 6.2 18/07/2014 Added button [Toggle Markers]
Version 6.3 05/11/2014 Search Function now works when you hit enter
Version 6.4 23/03/2015 New button [Estimate Address] to estimate the address of the map centre point
Version 6.5 15/04/2015 New transparent fill area option
Version 6.6 11/05/2015 Location of marker now displayed when you hover over the marker
Version 6.7 27/10/2015 KML export now includes all areas
Version 6.8 11/11/2015 New option to export list of latitude and longitude to a text box
Version 6.9 14/12/2015 Now displays total perimeter
Version 6.10 06/01/2016 New option to only download the last area as a KML file when you draw multiple areas
Version 6.11 28/01/2016 Improved Full Screen function
Added Keyboard Shortcuts
Version 6.12 16/02/2016 Added new function to delete a marker when you right click
Version 6.13 24/02/2016 Added option to show grid lines on map
Version 6.14 04/04/2016 Updates to print formatting
Version 6.15 02/08/2016 Bug fix : Sometimes area would not delete when click the red X
Version 6.16 21/02/2017 Bug fix : Issue while renaming a saved area. Now resolved.

Comments For This Page

Mat, sorry this is not possible. We will take this idea and consider it for future updates
By Daft Logic on 23rd June 2017
Hi, if I have multiple separate distinct saved areas, is there a way to then combine them and see them together on a map (without redrawing each area)?

Thanks - love the tool!
By Mat on 21st June 2017
Add wkt support so that i can paste a polygon obj here and find its area
On 19th June 2017
A very cool tool!
On 13th June 2017
Hi John, you can try switching to full screen view then print from the browser.
By Daft Logic on 8th June 2017
Can you print what you have?
By John on 7th June 2017
Russia in this map : ~ 9 millions kmē
Russia in reality : 17 millions kmē

Strange, because numbers are right to Canada (~9/10 millions kmē)
On 1st June 2017
EddyQ, the markers can be dragged after they have been placed on the map.
By Daft Logic on 1st June 2017
Nice, but I wish it had a way to drag points.
By EddyQ on 1st June 2017
One of best site can app available for Android
By bissmillah fish farm 60 acres on 3rd May 2017
awesome work
By Amit on 31st March 2017
Proposed Solar Farm acreage 31-32 acres
By Viecelli 3190 Gramer Road, Web on 30th March 2017
Would be good if once the area is defined you could show the measurements between points so that it can be transferred on to the ground.
On 28th March 2017
re opening saved area.
Thanks! - that worked. - clear map, then saved area comes..
All the best Nic

By nic on 24th February 2017
Hi Nic, it sounds like to are doing the right steps - click on the Saved Area name to load it. Does this happen (well, nothing happens) for more than one saved area? What happens if you draw and save a new area then clear the map and try to load the newly saved one?
By Daft Logic on 24th February 2017
Hi, thanks for nice prog, but how do I open a saved area to view it?
Clicking on "Name" does nothing.
Mailed it to myself but then only daftlogic page opens.
How to open and view saved Areas??
By Nic Stathakis on 23rd February 2017
Hi, it sounds like you are reading the perimeter for a 2 sided area. There is a 'quirk' where this page measures it there and back as it sees it as an areas perimeter. If you are looking to measure distance, try the Distance Calculator.
By Daft Logic on 23rd February 2017
Hi, I bealive something is wrong with the measuring system. Iīm seeing the distances duplicated. The same line in google erath and maps is giving me 1km, and the line here is indicating 2 km. Maybe is something from the scale... Regards
On 23rd February 2017
Tom, thanks for reporting this. You are correct, it wasn't working. It should now be fixed.
By Daft Logic on 21st February 2017
Rename does not work. I've tried with and without cookies. You can type a new file name, but it does not save.
By Tom on 21st February 2017
Brent, when you say "The responding email would not get the measured information." - what do you mean by this? Do they get the email? Do they see the map? Do they see the outline of the area on the map?
I can see your 3 saved areas, 1 has no data , 1 has only one point of data and the 3rd (near Amarillo) has data saved for a small lawn at a commercial property and measures 144.05 feetē
By Daft Logic on 8th February 2017
Erochu. Thanks for the comments. The estimation assumes a flat earth so there is a margin of error. It is hard to put any figure on the margin of error but any slope or gradient would need to be extreme to get to a point where the inaccuracy makes the estimate on this page misleading, Please see the Disclaimer for the legal stuff.
By Daft Logic on 8th February 2017
Hello daftlogic. This is an amazing suite. I use your other one to measure my jogging routes! :) So this is my question:

Does your calculations take into account the distortion caused by translating a 3d object into a flat 2d object?

If not, how much would that affect the calculations regarding plots smaller than an acre? I have a small plot and want to get an idea of the area without paying for a surveyor! Thanks so much!
By Erochu on 8th February 2017
DL,
Regarding what happens when I click on a saved item.. I have one saved in Amarillo TX. it brings up the location ( house), but the measurements around the lawn ( green markings) highlighted is gone. Then I click on an apartment complex in Fort Worth TX and it draws a line toggle marks it from amarillo to Ft Worth. but the same thing with the green markings of the measurements are gone. I left a response before this one. This is the second message today.. Thanks.

The first 3 of my username is "bur" . Basically, I am measuring the square footage of lawn on a residential and commercial property. After lining the property and it highlights in green and shows the square footage. I would give it a name for its location then save, then send it to an email. The responding email would not get the measured information. I would check was I saved and the measured information (green markings) is lost. So again that is my concern why is it not saving the square footage?

Please continue your information from last week. Need to know why its not saving!!

Thanks
Brent, Texas
On 7th February 2017
DL,
Regarding what happens when I click on a saved item.. I have one saved in Amarillo TX. it brings up the location ( house), but the measurements around the lawn ( green markings) highlighted is gone. Then I click on an apartment complex in Fort Worth TX and it draws a line toggle marks it from amarillo to Ft Worth. but the same thing with the green markings of the measurements are gone. I left a response before this one. This is the second message today.. Thanks.

Thanks any advise!

Brent
Texas
On 2nd February 2017
The first 3 of my username is "bur" . Basically, I am measuring the square footage of lawn on a residential and commercial property. After lining the property and it highlights in green and shows the square footage. I would give it a name for its location then save, then send it to an email. The responding email would not get the measured information. I would check was I saved and the measured information (green markings) is lost. So again that is my concern why is it not saving the square footage?

Thanks for looking into this.
Brent,
Texas
On 2nd February 2017
I'm trying to figure out the area of boundaries - focussed specifically on those in Tewkesbury Borough, Gloucestershire, England; right down to our parish level. It's proving impossible! Can Google do anything amazing like overlay the boundary map so I can figure out the area of each parish? It'd be amazing! :)
Boundary map can be found here http://product.itoworld.com/map/193
By Edie on 31st January 2017
Brent, what are the first 3 characters of your username? This will help us look in to this.
By Daft Logic on 30th January 2017
Hi Brent, when you login do any saved areas appear on the list above the map? If so, what happens when you click on them?
By Daft Logic on 30th January 2017
Thanks for responding to my saving issue, but it didn't solve it. I have an account. I have saved several projects and have lost several hours of work because after I saved it the measurements (green markings) is lost. Its saving the project (location), but not the measurements (square footage). I'm at a loss on what I'm doing wrong and why it's not saving the measurements?

Anyone please advise,
Thanks,
Brent
On 30th January 2017

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