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Drag any country across the world map and watch it resize to its real area. A clean, classroom-ready way to show how flat maps distort the world, free and part of a 90+ app suite.
| thetruesize.com | Sage Teachers' True Size | |
|---|---|---|
| Cost | Free | Free |
| Sign-in | None needed | Free sign-in to launch (no card) |
| Core idea | Drag countries to compare real size | Same — drag any country to its real area |
| Move several / rotate | Yes | Yes |
| Fill each shape with its flag | No | Yes |
| Equal-area map toggle | No (Mercator only) | Yes (Gall–Peters) |
| One-tap classic comparisons | No | Yes (Greenland vs Africa, and more) |
| Print / save a handout | No | Yes (PDF) |
| States / provinces / regions | Yes | Countries only |
| Beyond the map | A single map tool | 90+ classroom apps: quizzes, timers, games, printables |
Credit where it is due — thetruesize.com made this idea famous, it is free, and it actually goes wider than we do: you can compare states, provinces and regions too, not just whole countries. If you want the deepest map sandbox, it is excellent.
True Size matches it on the core drag-and-compare — move several countries at once, rotate them — then adds what you actually want on the board: every shape fills with its real flag, one tap sets up Greenland vs Africa, an equal-area map drives the point home, and Print/PDF turns it into a handout. And it sits alongside your quizzes, timers, group makers and 90+ other apps, so it is right there in the lesson rather than a separate tab.
Open it, pick up a country, and slide it anywhere on the world map. As you move it, the shape resizes to keep its real area, because the reprojection preserves the true distances between points. Drag Greenland down to the equator and it shrinks dramatically. Drag a small equatorial country up towards the pole and it grows. It is a fast, visual way to show why a flat map is not the whole truth.
Yes, thetruesize.com is a free interactive map. True Size on Sage Teachers is also free to try and does the same core job in a clean, classroom-ready page.
True Size lets you drag any country across the map to reveal its real size, and it sits alongside 90+ other classroom apps.
Flat maps like Mercator stretch areas near the poles. Greenland looks close to Africa, but Africa is about 14 times larger. Drag Greenland to the equator on True Size to see it shrink.
You sign in with a free account to launch it — no card, no cost — the same quick sign-in that opens any app on Sage Teachers. There is nothing to install.
Open it, drag a country, and let the class watch it change size. No download, no account.