| Ferrol to Oberkirch | 854.95 mi (1,375.91 km) |
| Ferrol to Obernburg am Main | 930.47 mi (1,497.45 km) |
| Ferrol to Obernkirchen | 1,003.05 mi (1,614.26 km) |
| Ferrol to Oberschleissheim | 1,004.48 mi (1,616.55 km) |
| Ferrol to Oberstdorf | 934.84 mi (1,504.48 km) |
| Ferrol to Obertraubling | 1,042.08 mi (1,677.07 km) |
| Ferrol to Obertshausen | 923.72 mi (1,486.58 km) |
| Ferrol to Oberursel | 917.06 mi (1,475.86 km) |
| Ferrol to Ochsenfurt | 964.64 mi (1,552.43 km) |
| Ferrol to Ochsenhausen | 928.99 mi (1,495.06 km) |
| Ferrol to Ochtrup | 931.82 mi (1,499.62 km) |
| Ferrol to Odenthal | 886.04 mi (1,425.95 km) |
| Ferrol to Oelde | 952.43 mi (1,532.78 km) |
| Ferrol to Oelsnitz | 1,070.00 mi (1,721.99 km) |
| Ferrol to Oer-Erkenschwick | 912.71 mi (1,468.87 km) |
