| True area | On the old Mercator map | Distortion vs truth |
| Romania | 235,752 km² | 485,649 km² | 2.1× |
| Greenland | 2,154,754 km² | 25,447,645 km² | 11.8× |
| Africa | 30,370,000 km² | — | 1× |
Old maps drew Romania at about 485,649 km² km². The truth is 235,752 km² km² — a difference of 106%% that school atlases carried for centuries.