| Sand to Orbetello | 1,154.28 mi (1,857.64 km) |
| Sand to Oria | 1,327.27 mi (2,136.03 km) |
| Sand to Oristano | 1,330.48 mi (2,141.20 km) |
| Sand to Orta Nova | 1,252.76 mi (2,016.12 km) |
| Sand to Orte | 1,155.77 mi (1,860.04 km) |
| Sand to Ortona | 1,173.40 mi (1,888.41 km) |
| Sand to Orvieto | 1,137.09 mi (1,829.97 km) |
| Sand to Orzinuovi | 949.03 mi (1,527.31 km) |
| Sand to Osimo | 1,090.18 mi (1,754.47 km) |
| Sand to Ospitaletto | 938.24 mi (1,509.95 km) |
| Sand to Ostuni | 1,310.95 mi (2,109.77 km) |
| Sand to Ottaviano | 1,276.74 mi (2,054.71 km) |
| Sand to Ovada | 1,003.70 mi (1,615.30 km) |
| Sand to Ozieri | 1,282.74 mi (2,064.37 km) |
| Sand to Paceco | 1,465.04 mi (2,357.76 km) |
