| Tiverton to Orbetello | 906.89 mi (1,459.49 km) |
| Tiverton to Oria | 1,239.96 mi (1,995.52 km) |
| Tiverton to Oristano | 956.95 mi (1,540.07 km) |
| Tiverton to Orta Nova | 1,127.17 mi (1,814.01 km) |
| Tiverton to Orte | 948.72 mi (1,526.81 km) |
| Tiverton to Ortona | 1,029.92 mi (1,657.49 km) |
| Tiverton to Orvieto | 926.29 mi (1,490.72 km) |
| Tiverton to Orzinuovi | 724.54 mi (1,166.04 km) |
| Tiverton to Osimo | 944.05 mi (1,519.31 km) |
| Tiverton to Ospitaletto | 723.72 mi (1,164.71 km) |
| Tiverton to Ostuni | 1,227.18 mi (1,974.96 km) |
| Tiverton to Ottaviano | 1,103.68 mi (1,776.20 km) |
| Tiverton to Ovada | 709.02 mi (1,141.05 km) |
| Tiverton to Ozieri | 930.69 mi (1,497.81 km) |
| Tiverton to Paceco | 1,187.60 mi (1,911.26 km) |
