Logic, but in a different way

Daft Logic

Google Maps Area Calculator Tool

Last Updated 5th November 2014

Search For Location :


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


[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


This tool allows you to use Google Maps to define an area and then 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 an area.

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

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.

Relevant Links


Further Uses and Ideas

  • Enable clicking inside the area
  • Allow markers to be toggled on and off
  • Allow upload a KML file and calculate any areas of polygons inside

Version History

  • Version 1 (14/11/2007)
  • Version 2 (25/03/2008) - Draggable markers added
    • 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 (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 (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 (12/11/2012) - Added perimeter output
  • Version 6 (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

Previous Comments For This Page

When will the areal map be updated? What map date will be used then?
By Nick on 20/12/2014
Hi Nick, unfortunately it is not possible to do this.
By Daft Logic on 20/12/2014
Is there a way to look at maps from different years to look at certain features. I want to look at a tile system.
By Nick on 19/12/2014
This is a really great tool, awesome job!
On 19/12/2014
Length ?? width 12ft
By Sean on 18/12/2014
The location search is not working for me
On 18/12/2014
Happy Holidays to Daft Logic!!
By El Kabong on 18/12/2014
Hi Matt, it expects it in lat, lng format. e.g. 48.85837,2.294481
By Daft Logic on 17/12/2014
Randy, its [lat, lng] without the square brackets e.g. 48.85837,2.294481
By Daft Logic on 17/12/2014
Doofus, the perimeter measurement for a 2 sided area is twice the distance between the 2 points. So 400m is displayed when they are 200m apart.
By Daft Logic on 17/12/2014
Woo hoo Daft Logic area is back!!!! We're saved from rolling!!!!
By Happy Rep :) on 17/12/2014
Hi Ryan, it now displays square miles. I hope this helps.
By Daft Logic on 17/12/2014
Hi, things should be back in order now.
By Daft Logic on 17/12/2014
I'm no longer able to enter anything into the location search, it's not responding! Please help
On 17/12/2014
Cold chill running down my spine. Daft Logic SF calc not working. Thankfully the distance is still working and you can calculate the SF with that.
By Scared rep on 17/12/2014
The search button doesn't work when I click on it in ANY browser. :(
On 17/12/2014
We have now added a scale control to the bottom right of the map.
By Daft Logic on 15/12/2014
How can you get the dimensions to display?
On 14/12/2014
Hey Daft Logic, awesome tool! I'd love if it could also calculate square miles as that is what most of my measurement work is in and I get tired of having to convert square nautical miles :P but either way, awesome stuff. thanks for providing the tool :)
By Ryan on 14/12/2014
On 13/12/2014
Please provide option to find length and width of the segments which are used for finding the area and perimeter
On 09/12/2014
Its ellipsoidal
By Daft Logic on 08/12/2014
is this area spherical or ellipsoidal ?
By ss on 07/12/2014
By raulzarate on 07/12/2014
I must be an idiot because I am having some difficulty calculating the area of a space using the tool. When I measure one side of a square space using two points it shows me the "perimeter" is 400 meters. This is effectively showing the distance from one point to another. Then when I measure the area of the square whose sides the tool shows to be 400 meters in length, I find that the area is actually 10 acres (Which we know to be equaled to 40468.6 square meters). However this is impossible as a square whose sides are each 400 meters long should have a total area of 160,000 meters or 39.5369 acres. Am I using this tool incorrectly? Am I just really bad at math? (Is Google calculator really bad at math?) What's the problem here? If I can trust the tool to show me an area of 10 acres with a perimeter of approximately 800 meters why does is show the distance between two points on the side of the ten acre square to be 400 meters? Please help!!!!
By Doofus on 05/12/2014
By shahryar on 03/12/2014
Edit....I deleted last comment because I do see how to hit to save the new area and it asks me to name it and then I hit save but then that box goes away and it is not shown in the saved area section.
By Nick on 03/12/2014
I've created an account but it doesn't actually save the points? I login, find a location, map it out and then what? I've hit the save new area but it just tells me to go find an area. The Saved area section still always says no saved areas.
By Nick on 03/12/2014
Land on hangu road
By Qazi Banda on 01/12/2014
very very thanks for google
By laxmi on 29/11/2014

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