| Bracknell to Orbetello | 836.49 mi (1,346.21 km) |
| Bracknell to Oria | 1,155.44 mi (1,859.51 km) |
| Bracknell to Oristano | 912.60 mi (1,468.69 km) |
| Bracknell to Orta Nova | 1,045.09 mi (1,681.92 km) |
| Bracknell to Orte | 873.21 mi (1,405.30 km) |
| Bracknell to Ortona | 947.56 mi (1,524.95 km) |
| Bracknell to Orvieto | 850.55 mi (1,368.82 km) |
| Bracknell to Orzinuovi | 641.39 mi (1,032.22 km) |
| Bracknell to Osimo | 859.16 mi (1,382.68 km) |
| Bracknell to Ospitaletto | 638.87 mi (1,028.17 km) |
| Bracknell to Ostuni | 1,141.92 mi (1,837.75 km) |
| Bracknell to Ottaviano | 1,027.83 mi (1,654.14 km) |
| Bracknell to Ovada | 637.53 mi (1,026.01 km) |
| Bracknell to Ozieri | 880.96 mi (1,417.77 km) |
| Bracknell to Paceco | 1,131.06 mi (1,820.27 km) |
