Area Calculator

This planimeter tool can be used to measure the enclosed area of a defined polyline on a map.

Measure an Area

Area Output

0 m²
0 km²
0 Acres
0 Hectares
0 Feet²

Perimeter Output

0 m
0 km

Options

 Delete Last Point 

 Delete All Points 

 Start a New Area 


Show Markers?
Show Crosshairs?
Transparent Fill Colour?
[Map Height : Small - Medium - Large - Full Screen]

Read KML (Beta)

Upload KML File:

 Upload 

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.

To draw a new area click the [Start a New Area] button or press Alt+n

Information

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

Benchmarks

Lough Neagh

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 area to be saved for later use
  • Export to KML option

Version History

  • 17th June 2015 - Markers now show their lat/lng when you hover over them
  • 18th December 2014 - Total area is now calculated
  • 23rd March 2014 - Added Hectares output
  • 6th August 2013 - Issue with perimeter output fixed
  • 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

Comments For This Page

Perimeter Parque General San MartÝn Mendoza
By Emanuel Alarc├│n on 20th May 2017

Bernard, please get in contact to discuss.
By Free Map Tools on 20th May 2017

Is this solution available for download or purchase?
By Bernard on 19th May 2017

Now it works again, Great program!
By Ryan on 16th May 2017

Es mas o menos lo que estaba buscando, pero yo quiero es que me de un rango de latitud y longitud de esa area, para luego evaluar si es que alguien esta alli o no y segun eso hacer una u otra cosa. Gracias..
By Programador free on 11th May 2017

6.513 acres
By Ken Staude on 9th May 2017

Nice map tool dudes
By Bowzer on 9th May 2017

non riesco pi¨ ad entrare dal primo maggio 2017
By Giorgio on 3rd May 2017

Please reload the page using Shift + F5 (Windows) or ⌘ + Shift + R (Mac) and see if it loads OK then?
By Free Map Tools on 2nd May 2017

Still doesn't work for me
On 2nd May 2017

The search now tries to find a location if you press enter/return straight after typing.
By Free Map Tools on 2nd May 2017

The search function is broke. I use to use this program all the time and it was excellent while it worked, it seriously needs to get corrected soon I will will find other software instead.
By Ryan on 2nd May 2017

no response to the search problem?
On 2nd May 2017

I'm having trouble getting the search to work in this part of the website. There is no search button coming up and it doesn't work just hitting enter after you enter the address.
By Kristy on 1st May 2017

I cant get the search function to work. I add the address and hit enter but the map does not show me the location that I am searching
On 1st May 2017

Entering address hitting enter, map not changing to the address.
On 1st May 2017

I cant get the search function to work. I add the address and hit enter but the map doesn't change to the address.
On 1st May 2017

Its a great website. So nice, real and accurate in its measurements
By Prasanna XD on 1st May 2017

I like my village
By pappu Prakash sharma on 30th April 2017

The search function is now on the map itself near the top left.
By Free Map Tools on 29th April 2017

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