| Belper to Orbetello | 936.80 mi (1,507.63 km) |
| Belper to Oria | 1,244.55 mi (2,002.90 km) |
| Belper to Oristano | 1,023.22 mi (1,646.72 km) |
| Belper to Orta Nova | 1,136.62 mi (1,829.22 km) |
| Belper to Orte | 970.26 mi (1,561.48 km) |
| Belper to Ortona | 1,039.40 mi (1,672.76 km) |
| Belper to Orvieto | 947.58 mi (1,524.98 km) |
| Belper to Orzinuovi | 735.18 mi (1,183.16 km) |
| Belper to Osimo | 949.62 mi (1,528.27 km) |
| Belper to Ospitaletto | 731.44 mi (1,177.13 km) |
| Belper to Ostuni | 1,230.47 mi (1,980.26 km) |
| Belper to Ottaviano | 1,123.84 mi (1,808.64 km) |
| Belper to Ovada | 738.75 mi (1,188.90 km) |
| Belper to Ozieri | 990.05 mi (1,593.32 km) |
| Belper to Paceco | 1,236.85 mi (1,990.51 km) |
