| Swanage to Orbetello | 840.77 mi (1,353.09 km) |
| Swanage to Oria | 1,171.45 mi (1,885.26 km) |
| Swanage to Oristano | 898.15 mi (1,445.43 km) |
| Swanage to Orta Nova | 1,058.99 mi (1,704.28 km) |
| Swanage to Orte | 881.59 mi (1,418.77 km) |
| Swanage to Ortona | 961.63 mi (1,547.60 km) |
| Swanage to Orvieto | 859.09 mi (1,382.57 km) |
| Swanage to Orzinuovi | 655.90 mi (1,055.56 km) |
| Swanage to Osimo | 875.35 mi (1,408.73 km) |
| Swanage to Ospitaletto | 654.85 mi (1,053.88 km) |
| Swanage to Ostuni | 1,158.56 mi (1,864.52 km) |
| Swanage to Ottaviano | 1,036.60 mi (1,668.25 km) |
| Swanage to Ovada | 642.37 mi (1,033.80 km) |
| Swanage to Ozieri | 870.13 mi (1,400.33 km) |
| Swanage to Paceco | 1,125.33 mi (1,811.05 km) |
