About the map and its sources
Real Country Size lets you move a country or territory outline across several world map projections and compare two places using approximate area estimates from the same boundary dataset.
Why this exists
A flat map cannot preserve every property of the globe. On a Mercator world map, distortion is strongest at high latitudes. Moving an outline makes that effect easier to notice. The U.S. Geological Survey explains this in its overview of map projections.
Method & sources
The map uses 242 features from Natural Earth’s 1:50m Admin 0 Countries data. We simplify the boundary coordinates for a faster browser download while keeping small shapes in the dataset. The site serves its own copy; your browser does not need a third-party map service. The boundaries are intended for a broad world view, not precise local measurements.
Each approximate area is calculated from the original polygon coordinates on a sphere before the display geometry is simplified. At its original position, the selected outline uses the same projected boundary as the map beneath it. Dragging rotates the boundary on a spherical globe so its anchor moves to the new location, then draws it in the chosen map view. This preserves its size on the globe, while the apparent shape and size can change in the flat map. The area number remains fixed.
The wide world view uses an equirectangular projection. It fits the whole world into a broad frame, but stretches apparent area near the poles. Mercator stretches high latitudes more strongly while preserving local angles. Equal Earth keeps a constant area scale across latitudes while curving the map’s edges inward near the poles.
What the comparison cannot show
Coarse boundaries omit small islands and shoreline detail. Large or fragmented territories can look unusual when moved far from their original latitude. The area estimates may differ from official land or total-area figures, and borders and names follow the source file. This is an educational visualization, not a survey or statement about disputed boundaries.
The projection guide shows the scale changes in each view. The area guide distinguishes our map estimate from official land and total-area figures. The area index contains the approximate size of every mapped country and territory feature.
Publisher and contact
Real Country Size is published by ADMK Studio S.L., NIF B26920967, Calle Corona Boreal 1, Denia, 03700, Spain. Readers can write to info@admk.com about corrections, sources or privacy requests.