| Arenys de Munt to Orbetello | 448.55 mi (721.87 km) |
| Arenys de Munt to Oria | 789.09 mi (1,269.91 km) |
| Arenys de Munt to Oristano | 337.85 mi (543.72 km) |
| Arenys de Munt to Orta Nova | 681.49 mi (1,096.75 km) |
| Arenys de Munt to Orte | 508.34 mi (818.10 km) |
| Arenys de Munt to Ortona | 610.76 mi (982.92 km) |
| Arenys de Munt to Orvieto | 495.74 mi (797.82 km) |
| Arenys de Munt to Orzinuovi | 453.27 mi (729.47 km) |
| Arenys de Munt to Osimo | 571.35 mi (919.50 km) |
| Arenys de Munt to Ospitaletto | 464.80 mi (748.02 km) |
| Arenys de Munt to Ostuni | 783.72 mi (1,261.27 km) |
| Arenys de Munt to Ottaviano | 622.01 mi (1,001.03 km) |
| Arenys de Munt to Ovada | 372.04 mi (598.74 km) |
| Arenys de Munt to Ozieri | 343.83 mi (553.35 km) |
| Arenys de Munt to Paceco | 587.07 mi (944.79 km) |
