| True area | On the old Mercator map | Distortion vs truth |
|---|
| Burundi | 27,217 km² | 27,217 km² | 1× |
| Greenland | 2,154,754 km² | 25,447,645 km² | 11.8× |
| Africa | 30,370,000 km² | — | 1× |
Old maps drew Burundi at about 27,217 km² km². The truth is 27,217 km² km² — a difference of 0%% that school atlases carried for centuries.