| Carregal do Sal to Orbetello | 1,002.59 mi (1,613.51 km) |
| Carregal do Sal to Oria | 1,342.64 mi (2,160.77 km) |
| Carregal do Sal to Oristano | 875.45 mi (1,408.91 km) |
| Carregal do Sal to Orta Nova | 1,236.34 mi (1,989.70 km) |
| Carregal do Sal to Orte | 1,062.43 mi (1,709.82 km) |
| Carregal do Sal to Ortona | 1,165.20 mi (1,875.21 km) |
| Carregal do Sal to Orvieto | 1,048.80 mi (1,687.88 km) |
| Carregal do Sal to Orzinuovi | 967.58 mi (1,557.17 km) |
| Carregal do Sal to Osimo | 1,120.45 mi (1,803.19 km) |
| Carregal do Sal to Ospitaletto | 976.85 mi (1,572.09 km) |
| Carregal do Sal to Ostuni | 1,337.84 mi (2,153.04 km) |
| Carregal do Sal to Ottaviano | 1,175.56 mi (1,891.88 km) |
| Carregal do Sal to Ovada | 894.00 mi (1,438.75 km) |
| Carregal do Sal to Ozieri | 891.89 mi (1,435.35 km) |
| Carregal do Sal to Paceco | 1,110.54 mi (1,787.24 km) |
