| Castelfidardo to Oststeinbek | 713.23 mi (1,147.83 km) |
| Castelfidardo to Ottendorf-Okrilla | 533.22 mi (858.13 km) |
| Castelfidardo to Ottersberg | 695.44 mi (1,119.20 km) |
| Castelfidardo to Ottobrunn | 330.62 mi (532.09 km) |
| Castelfidardo to Ottweiler | 508.19 mi (817.86 km) |
| Castelfidardo to Overath | 594.03 mi (956.00 km) |
| Castelfidardo to Oyten | 694.67 mi (1,117.96 km) |
| Castelfidardo to Paderborn | 612.11 mi (985.09 km) |
| Castelfidardo to Papenburg | 720.53 mi (1,159.58 km) |
| Castelfidardo to Parchim | 692.06 mi (1,113.77 km) |
| Castelfidardo to Pasewalk | 693.71 mi (1,116.43 km) |
| Castelfidardo to Passau | 353.10 mi (568.26 km) |
| Castelfidardo to Pattensen | 632.69 mi (1,018.22 km) |
| Castelfidardo to Pegnitz | 444.96 mi (716.09 km) |
| Castelfidardo to Peine | 630.67 mi (1,014.97 km) |
