Area Calculator
This tool can be used to find the enclosed area of a defined polyline on a map.
Measure an Area
Area Output
Perimeter Output
Options
Read KML (Beta)
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 me output in square metres 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.
Information
The area calculator tool allows you to find out the area that is enclosed inside a closed polyline overlaid on a map.
Benchmarks
A measurement of Lough Neagh in Northern Ireland. Lough Neagh is reported to have a surface area of 388 km˛ [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 option to have more than one area on the map at the same time
- Option to show/hide markers
- Output the length of the perimeter
- Add a quick find option to zoom in to the region without much panning and zooming
- Add square feet output
Version History
- 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 metres 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
Previous Comments For This Page
What a great site! Most useful thing I have found for a long time!
On 27/08/2010
Además de "Area Output" y "Perimeter Output", deberian incluir el "largo" de la última linea marcada
By ANDRES on 27/08/2010
lovely , just what I've looking for .. thank you
On 15/08/2010
It was very helpful. I just realized how much land I really disposed off.
By C. J. Rapposelli on 10/08/2010
It would be helpful to have a cross-hair 'overlay' for the centre of the map. It would make it much easier to centralise the area that is of interest.
By PK on 17/07/2010
Excellent and wonderful tool, however, when I switch from one measuring tool to another the map resets to world view. Is it possible for it to stay on my location and scale when switching from one measuring tool to another?
By Bob on 14/07/2010
Fantastic tool - thanks!
By Fat Cuffy on 06/07/2010
Todd, there is now an option to upload a KML. Please try it any let us know how it goes.
By Free Map Tools on 17/06/2010
Can you load KML's or KMZ's from a GPS onto the map and devlop acreages from the uploaded files?
By Todd, California on 14/06/2010
this is great!
is there any way to input points in lat/long
On 04/06/2010
Great tool for finding area covered for evacuation/exlusion zone in my emergency planning
By Chris B on 01/06/2010
WOW what a great tool. I have used it to plot and measure my jogging runs, measure some site areas for work and to measure travel distances. Excellent work.
Suggested improvement is to enable multiple map positions to be created and marked just to tag places. I would love to be able to remind myself of places I have visited, tag them on a map and to make some notes.
Commercially it could be used by sales people to plot and store notes linked to their spreadsheets or databases of contacts. It could also be used to mark places of interest as is the case with Panoramio (when it accepts and loads one's uploads)
Great work guys.
By Richard, England on 01/06/2010
EXCELLENT SITE!!!! Great work!!! Now I am able to plan, map, and determine the distance to my destination(s). As an "over the road" truck driver this tool is more valuable then my GPS!!!
By Chad Robison on 30/05/2010
it's super boss
By neeraj on 29/05/2010
THIS IS GREAT.I USE IT FOR WORK PURPOSES . I DO A LOT OF RANCH/FARMS MAPPING.
By EMMANUEL GAXIOLA on 24/05/2010
Thank you!
By JK on 08/05/2010
The exploration of Africa got a whole lot easier with Google Earth and your site enabled me to find the areas of the very few remaining apparently closed-canopy relict forest patches in the west of The Gambia. Just what I was needing and many thanks.
By John Tucker for Farasuto Fores on 04/05/2010
Very handy tool, much appreciated. It'd be even better if you could see the scale!
By Jules on 20/04/2010
Great site. Just what I was looking for!
On 20/04/2010
This site is magic, I'm glad I 'tripped' over it.
By Elaine on 25/03/2010
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