Geographic comparison · Alpha

Understand the world through places you know.

Compare the area, population and density of countries, cities and islands using reference places that already feel familiar.

Japan Country 377,975.6 km²

Taiwan Familiar reference 36,197.3 km²

The first comparison dataset is live

Start with

Start with these comparisons

Each guide covers size, population, density, geographic scope and the definitions behind the data.

Overlay outlines on the same area scale to see the difference directly.

Compare population and average density with dates and definitions attached.

Keep countries, regions, cities and individual islands distinct when names overlap.

01
Check official data
Record area, population, reference dates and sources.
02
Use one visual scale
Scale outlines by land area and calculate values from source data.
03
Add human context
Explain geography, population and administrative scope for each pair.

Check each place’s area, population, reference dates and official sources, then choose a comparison.