Compera is a fun tool which you can use to compare the size of two different countries, states or cities.
Using Compera couldn't be easier. Simply select the two locations you wish to compare from two drop-down menus and you will be shown two maps of your selected locations, allowing you to easily compare their respective sizes. Compera also reveals how many times the larger location is than the smaller location, the size of each (in square kilometers) and the populations of each.
The maps on Campera are created using D3.js, using map data from Natural Earth Data.
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