| True area | On the old Mercator map | Distortion vs truth |
|---|
| Norfolk Island | 42 km² | 55 km² | 1.3× |
| Greenland | 2,154,754 km² | 25,447,645 km² | 11.8× |
| Africa | 30,370,000 km² | — | 1× |
Old maps drew Norfolk Island at about 55 km² km². The truth is 42 km² km² — a difference of 31%% that school atlases carried for centuries.