The True Size Of

What it does

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.

Drag, drop and rotate countries, states, provinces, and regions around the map to compare their relative size. Is Greenland really as big as all of Africa? You may be surprised at what you find! A great tool for educators.

• IE
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  Find out the true size of countries on a world map.

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  Put Greenland on the Moon (interactive map for size compare)Jan 2026 · github.com · ▲6

  I built a drag-and-drop map playground to compare the true sizes of countries and visualize Mercator distortion, just for fun and sharing. Open source + easy to replace the GeoJSON with your own data. Demo: https://www.runcell.dev/tool/true-size-map Source: https://github.com/ObservedObserver/world-map-reality

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• AS
  A Senior Engineer's CheckList▲662

  Sharing something that I wrote for my use but I think can be useful to others (I am an engineer with the title of Senior Software Engineer) Visit [1] for a full list (table view gives a lot of options. See "Controls"). Visit [2] for a summary. The source of the list is at [3] 1. https://littleblah.com/post/2019-09-01-senior-engineer-checklist/ 2. https://medium.com/@littleblah/my-top-25-items-in-a-senior-engineers-checklist-c8e9f9f6e3c2 3. https://github.com/littleblah/senior-engineer-checklist Feedbacks/Pull requests…

  Dev tools · 2019