| True area | On the old Mercator map | Distortion vs truth |
|---|
| Marshall Islands | 236 km² | 241 km² | 1× |
| Greenland | 2,154,754 km² | 25,447,645 km² | 11.8× |
| Africa | 30,370,000 km² | — | 1× |
Old maps drew Marshall Islands at about 241 km² km². The truth is 236 km² km² — a difference of 2%% that school atlases carried for centuries.