Japanese prefectures vs countries
Which is bigger?
Tap the place with the larger area. Trust your instinct.
One home region. One country or territory. Five comparisons, no timer.
Choose a prefecture and give it a new frame of reference. Each question puts it beside a country or territory from the world map.
All 47 prefectures, compared beyond Japan
Every prefecture is available as a home region. The opposing place is a country or selected territory other than Japan. Offshore pieces and boundaries follow the pinned map source.
The space between islands is not filled land. We compare the area of the mapped polygons, then resize the displayed outlines to show that relationship.
227 mapped places in this set.
Explore more geography games →Five questions at your own pace
Choose the place with the larger area. The outlines start fitted to their own cards, then rescale after your answer. There is no timer or speed bonus.
You can finish all five questions even if you get some wrong. Play another short round whenever you like; smaller sets repeat comparisons sooner.
Use the home-region menu above the maps to keep one familiar place throughout the round. Every question pairs a region with a country or selected territory, never with another region.
These comparisons use matching 1:10 million source maps. They measure area, not whether one shape can physically fit inside the other. Values can differ slightly from the world game’s less detailed map.
Compare regions within Japan →Want a longer run? Endless mode gives you three chances. Your progress stays in this browser, and sharing sends a friend the same question without the answer.
Results use approximate mapped areas, not official land-area or total-area figures. Read the data and coverage notes.
Game modes and sharing explained ↗