Try a classic:
On the map
Drag a shape to move it. Watch it grow toward the poles — that's the Mercator distortion. Select a shape and use arrow keys to nudge, Delete to remove.
Drag a shape to move it. Watch it grow toward the poles — that's the Mercator distortion. Select a shape and use arrow keys to nudge, Delete to remove.
The world map you grew up with — the Web Mercator projection — stretches land near the poles. Greenland looks as big as Africa. It is 14 times smaller.
TrueScale keeps each shape's real, on-the-ground size as you drag it. Move a country toward a pole and it balloons, exactly as Mercator distorts it. Move it to the equator to see its honest size.
Boundaries: Natural Earth (public domain). Area math: Turf.js. Map: Leaflet + OpenStreetMap. No ads, no trackers, no cookies — just the source.