| Brierley Hill to Orbetello | 929.47 mi (1,495.83 km) |
| Brierley Hill to Oria | 1,244.94 mi (2,003.54 km) |
| Brierley Hill to Oristano | 1,006.25 mi (1,619.40 km) |
| Brierley Hill to Orta Nova | 1,135.46 mi (1,827.34 km) |
| Brierley Hill to Orte | 965.32 mi (1,553.54 km) |
| Brierley Hill to Ortona | 1,037.98 mi (1,670.47 km) |
| Brierley Hill to Orvieto | 942.64 mi (1,517.04 km) |
| Brierley Hill to Orzinuovi | 732.26 mi (1,178.46 km) |
| Brierley Hill to Osimo | 949.00 mi (1,527.28 km) |
| Brierley Hill to Ospitaletto | 729.30 mi (1,173.69 km) |
| Brierley Hill to Ostuni | 1,231.20 mi (1,981.42 km) |
| Brierley Hill to Ottaviano | 1,119.70 mi (1,801.98 km) |
| Brierley Hill to Ovada | 730.62 mi (1,175.83 km) |
| Brierley Hill to Ozieri | 974.86 mi (1,568.89 km) |
| Brierley Hill to Paceco | 1,224.98 mi (1,971.42 km) |
