| Fermo to Oberkirch | 459.37 mi (739.29 km) |
| Fermo to Obernburg am Main | 509.96 mi (820.70 km) |
| Fermo to Obernkirchen | 664.11 mi (1,068.78 km) |
| Fermo to Oberschleissheim | 366.56 mi (589.92 km) |
| Fermo to Oberstdorf | 337.69 mi (543.47 km) |
| Fermo to Obertraubling | 407.88 mi (656.42 km) |
| Fermo to Obertshausen | 530.16 mi (853.21 km) |
| Fermo to Oberursel | 543.84 mi (875.22 km) |
| Fermo to Ochsenfurt | 480.74 mi (773.67 km) |
| Fermo to Ochsenhausen | 384.99 mi (619.59 km) |
| Fermo to Ochtrup | 694.07 mi (1,117.01 km) |
| Fermo to Odenthal | 625.68 mi (1,006.94 km) |
| Fermo to Oelde | 652.64 mi (1,050.33 km) |
| Fermo to Oelsnitz | 506.63 mi (815.34 km) |
| Fermo to Oer-Erkenschwick | 658.79 mi (1,060.22 km) |
