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

Thank you - today I am able to scale properly, but is it possible to scale the elevation and not just the plan view? I need to get the height of a building and whenever I try, it reverts back to the plan view.
By Mike on 27/01/2015
Hi Alwin, sorry I'm not sure what you mean? Can you explain in a bit more detail please?
By Daft Logic on 26/01/2015
Hi Mike, if you are looking to measure distances please use the Distance Calculator. What you see is the perimeter of the area which is twice the distance between the points.
By Daft Logic on 26/01/2015
I just started using this, but so far I noticed that everything is double in size - to check the scale, I measured a balcony on a building that is 10'-0 wide, but the dimension in LF is coming up just about double. I've tried this on multiple areas of a building that I know the correct dimensions - what am I doing wrong?
By Mike on 26/01/2015
This is Ausome!
On 26/01/2015
Randy, you can use http://www.fcc.gov/encyclopedia/degrees-minutes-seconds-tofrom-decimal-degrees to convert from DMS to decimal lat/lng values. This page works with decimal lat/lng
By Daft Logic on 26/01/2015
I'm not understanding how to add [latitude,longitude] for instance S44 degrees 44'39" E 332.30' ??
By Randy on 25/01/2015
can I get GPS coordanates from daftlogic
By alwin on 25/01/2015
Jayesh, please use the Distance Calculator for this.
By Daft Logic on 24/01/2015
Excellent Tool. Your tool calculates area and perimeter. Please let me know how to know distance between each marker.
By Jayesh Patel on 22/01/2015
Saludos y gracias por el software creado. Las áreas son aproximadas, pero para muchos trabajos, la aproximación es completamente práctica.
By Alfonso Chíncaro on 22/01/2015
Hi Will, there is no easy/neat way. You can try printing from your browser but this will induce extra content you don't need. Perhaps a cropped screenshot is the best option?
By Daft Logic on 21/01/2015
Hi Azaad, as per the Disclaimer we don't stand over any results produced. It is only an estimate.
By Daft Logic on 21/01/2015
when logging in and placeing the address in the search area. it brings up the aera but does not show the place or mark the area your looking for. example a house.
On 21/01/2015
Thank you Daft Logic for this really really useful tool. I have an observation/question. I am calculating the area of chunk of land, which is demarcated by a boundary wall. When the land was bought, the deal was for 328 acres and both parties agreed. However, now that I measure the area it comes out to be around 318 acres i.e. 10 acres less. Why is that so? Can anyone help ? The land in this area is primarily plain but parts of it are in small pits and depressions with an occasional nullah flowing here and there. Can this rough terrain be the reason for this error of 10 acres ? 10 acres is not a small amount of land and hence I want to be sure this tool is giving correct information. Please help.
By Azaad on 20/01/2015
awesome tool... thanks a lot.
On 20/01/2015
On 20/01/2015
I have been using this tool for a little over 2 years now. I just want to say "Thank You" for the service and the support :) Is there any way to print a page with summary calculations and with areas calculated shown? i.e. the square footage of a facility.
By Will on 16/01/2015
Ty Bowling, unfortunately this cant be done.
By Daft Loigc on 14/01/2015
Is there a way to rotate the pictures?
By Ty Bowling on 14/01/2015
623 E 14th
By Doug on 13/01/2015
Hi - This tool is fantastic, but mine has stopped working. I enter address and click sublet and nothing happens. Tool still works when I zoom in manually and measure target. Im on an iMac Thanks, Zyg
On 13/01/2015
32°12'16.8"S 70°52'18.8"W 99530.54 m² 0.10 km² 24.59 acres 9.95 hectares 1071337.83 feet² 0.04 square miles 0.03 square nautical miles Current Perimeter 1352.210m OR 4436.386feet
By cvillavicencio@hecker.cl on 11/01/2015
Chipitie PML
On 10/01/2015
Hi Mike, we don't have any definition as to the level of accuracy, sorry.
By Daft Logic on 08/01/2015
Great tool! Thank you! How accurate is it?
By Mike on 08/01/2015
Hi Kenny, what format is the map in? What file extension does it have?
By Daft Logic on 06/01/2015
Hi alro, can you give an example please?
By Daft Logic on 06/01/2015
esto esta calculando con errores en las medidas
By alro on 05/01/2015
Can I load a map I have saved on my computer of an area and measure it?
By Kenny on 03/01/2015

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