| Ferrol to Oerlinghausen | 976.08 mi (1,570.86 km) |
| Ferrol to Oestrich-Winkel | 887.98 mi (1,429.07 km) |
| Ferrol to Offenburg | 847.00 mi (1,363.11 km) |
| Ferrol to Oftersheim | 895.55 mi (1,441.25 km) |
| Ferrol to Ohrdruf | 1,021.12 mi (1,643.33 km) |
| Ferrol to Ohringen | 930.50 mi (1,497.50 km) |
| Ferrol to Olbernhau | 1,124.05 mi (1,808.99 km) |
| Ferrol to Olching | 992.50 mi (1,597.28 km) |
| Ferrol to Oldenburg | 1,003.94 mi (1,615.68 km) |
| Ferrol to Oldenburg in Holstein | 1,139.08 mi (1,833.16 km) |
| Ferrol to Olfen | 920.26 mi (1,481.01 km) |
| Ferrol to Olpe | 912.64 mi (1,468.75 km) |
| Ferrol to Olsberg | 948.36 mi (1,526.25 km) |
| Ferrol to Oranienburg | 1,172.36 mi (1,886.73 km) |
| Ferrol to Ortenberg | 940.64 mi (1,513.81 km) |
