| Castelfidardo to Oschatz | 541.81 mi (871.96 km) |
| Castelfidardo to Oschersleben | 600.39 mi (966.24 km) |
| Castelfidardo to Osnabruck | 659.96 mi (1,062.11 km) |
| Castelfidardo to Ostbevern | 648.45 mi (1,043.58 km) |
| Castelfidardo to Osterburg | 649.04 mi (1,044.53 km) |
| Castelfidardo to Ostercappeln | 660.98 mi (1,063.74 km) |
| Castelfidardo to Osterhofen | 362.76 mi (583.81 km) |
| Castelfidardo to Osterholz-Scharmbeck | 707.81 mi (1,139.11 km) |
| Castelfidardo to Osternienburg | 580.30 mi (933.90 km) |
| Castelfidardo to Osterode | 591.12 mi (951.31 km) |
| Castelfidardo to Osterwieck | 601.89 mi (968.64 km) |
| Castelfidardo to Ostfildern | 418.05 mi (672.79 km) |
| Castelfidardo to Osthofen | 497.18 mi (800.13 km) |
| Castelfidardo to Ostrhauderfehn | 719.87 mi (1,158.52 km) |
| Castelfidardo to Ostringen | 459.46 mi (739.44 km) |
