It is hard to represent our spherical world on flat piece of paper. Cartographers use something called a "projection" to morph the globe into 2D map. The most popular of these is the Mercator projection.

MapMartini is described as 'Compare sizes of geographic areas by drawing a polygon on a map and overlaying it onto another part of the world. Also supports drawing paths and rotating the shape on the target map' and is a Map service in the travel & location category. There are 2 alternatives to MapMartini, not only websites but also apps for. The best MapMartini alternative is The True Size, which is free.
It is hard to represent our spherical world on flat piece of paper. Cartographers use something called a "projection" to morph the globe into 2D map. The most popular of these is the Mercator projection.

Comparea provides an accurate way to compare the area of two geographic locations. It uses a projection that helps minimize distortion so you can get a better idea of how big areas like Australia and Alaska really are in comparison to others like the United States and Brazil.
