| Cumayeri to Orbetello | 1,022.34 mi (1,645.29 km) |
| Cumayeri to Oria | 697.54 mi (1,122.58 km) |
| Cumayeri to Oristano | 1,175.36 mi (1,891.55 km) |
| Cumayeri to Orta Nova | 793.04 mi (1,276.27 km) |
| Cumayeri to Orte | 962.50 mi (1,548.99 km) |
| Cumayeri to Ortona | 859.67 mi (1,383.50 km) |
| Cumayeri to Orvieto | 976.74 mi (1,571.92 km) |
| Cumayeri to Orzinuovi | 1,101.22 mi (1,772.25 km) |
| Cumayeri to Osimo | 910.57 mi (1,465.42 km) |
| Cumayeri to Ospitaletto | 1,096.28 mi (1,764.29 km) |
| Cumayeri to Ostuni | 698.52 mi (1,124.15 km) |
| Cumayeri to Ottaviano | 859.53 mi (1,383.28 km) |
| Cumayeri to Ovada | 1,157.12 mi (1,862.21 km) |
| Cumayeri to Ozieri | 1,146.30 mi (1,844.80 km) |
| Cumayeri to Paceco | 1,000.14 mi (1,609.57 km) |
