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 milesAdd 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
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 |
| Version 6.17 | 17/08/2017 | Fixed issue with text formatting of notes |
Comments For This Page
I can't get it to center on my area when I zoom in or out- ?
On 22nd August 2017
multiply the calculated area by ~1.009 to compensate for the bird's-eye view underestimation. Or to ensure yourself, obtain the area of a known pitch to you by this app and divide the real area by the obtained number ( better do this in multiple cases and use the average) in order to arrive at a more accurate correctional coefficient.
On 19th August 2017
Not a fan of the Control Scroll
On 15th August 2017
This control scroll update sucks
On 15th August 2017
I created an area map and then saved it. Now when I pull up my saved information, it shows me a map where I was gathering information, but all the areas I mapped are missing. Is this how the "Save" feature is supposed to work?
On 9th August 2017
Cómo Cambio a Coordenadas UTM?
On 7th August 2017
Very nice App! Thank you.
On 5th August 2017
Any chance you can make this in to a wordpress plugin?
On 5th August 2017
Hi, Unfortunately ... no, the roof pitch is not considered. It will measure the birds-eye area which will be less than the actual roofing area.
By Daft Logic on 26th July 2017
Does DAft logic take into consideration of Roof Pitch when measuring area ?
On 25th July 2017
Hi Guy, as the areas can be any shape, its not possible to provide width / length. You can use the Distance Calculator to measure distances directly.
By Daft Logic on 20th July 2017
Very helpful tool. Any way to get width and length of a definded area
By Guy West on 20th July 2017
Hi, area boarders/perimeters are currently not available here.
By Daft Logic on 17th July 2017
Very nice. However, when using Google Maps, I can see borders, but not here. E.g. Berlin has borders in Google Maps, but here I can't see them.
On 17th July 2017
I assume you mean perimeter distance? There is an output below the map labelled Current Perimeter
By Daft Logic on 15th July 2017
Is there a way to get dimensions of the perimeter?
On 15th July 2017
Thanks for the comments Peter.
By Daft Logic on 15th July 2017
This app is very useful.
My lawn is a complex shape and, after using this tool, I now realise it's over 50% larger than I thought; which explains why the lawn fertiliser/weedkiller was not sufficiently effective - I was applying it too thinly.
By Peter S on 15th July 2017
Hi Alex, can you try the [Clear All Points] button just before you load the next area? This should clear the map before loading.
By Daft Logic on 14th July 2017
Guys, great website. New to buying property. Unsure of how big acres and hectares are in reality. This was a big help and answered my question exactly. Thanks heaps!
On 14th July 2017
I have the same lot with 4 different options saved with 4 different names - everytime I try to view the next one it doubles up the image and shows both
By Alex Hamernick on 12th July 2017
Thanks Guillaume. We will look in to this.
By Daft Logic on 4th July 2017
On 28th June 2017 - sorry this isn't possible.
By Daft Logic on 3rd July 2017
Very impressive tool and fun to use. Thanks! One bug I've noticed is that, as I open saved areas I had drawn the other day, some points get mixed up between saved areas when more than one is open at a time. I am trying to measure the surface of several sections of a land and want to make sure that the section borders line up nicely, not overlap or have gaps. Also, as I am adding a new area or section, I need to move some points and add new points to existing areas, but I seem to have no control where new points are added in the sequence. I'll probably just start over so it is simple like the other day, but I thought I should share some feedback for possible improvements. Thanks for the great tool!!
By Guillaume on 29th June 2017
Thanks. Just what I needed. Awesome!
By Mark on 29th June 2017
Cool tool. Is there a way to identify buildings > than a particular size within a certain geographic area? For example: Identify all the buildings in Greenwich, CT > 100,000 square feet?
On 28th June 2017
How accurate is this in giving the area of highlighted premise?
On 26th June 2017
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
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