| Torre del Campo to Orbetello | 859.11 mi (1,382.60 km) |
| Torre del Campo to Oria | 1,165.52 mi (1,875.72 km) |
| Torre del Campo to Oristano | 686.85 mi (1,105.37 km) |
| Torre del Campo to Orta Nova | 1,070.07 mi (1,722.11 km) |
| Torre del Campo to Orte | 916.98 mi (1,475.74 km) |
| Torre del Campo to Ortona | 1,015.03 mi (1,633.53 km) |
| Torre del Campo to Orvieto | 908.41 mi (1,461.95 km) |
| Torre del Campo to Orzinuovi | 885.67 mi (1,425.35 km) |
| Torre del Campo to Osimo | 990.21 mi (1,593.58 km) |
| Torre del Campo to Ospitaletto | 897.09 mi (1,443.73 km) |
| Torre del Campo to Ostuni | 1,163.68 mi (1,872.75 km) |
| Torre del Campo to Ottaviano | 1,002.43 mi (1,613.25 km) |
| Torre del Campo to Ovada | 804.56 mi (1,294.82 km) |
| Torre del Campo to Ozieri | 716.41 mi (1,152.95 km) |
| Torre del Campo to Paceco | 895.21 mi (1,440.71 km) |
