| Tring to Orbetello | 851.95 mi (1,371.07 km) |
| Tring to Oria | 1,167.01 mi (1,878.12 km) |
| Tring to Oristano | 932.70 mi (1,501.04 km) |
| Tring to Orta Nova | 1,057.43 mi (1,701.77 km) |
| Tring to Orte | 887.43 mi (1,428.19 km) |
| Tring to Ortona | 959.95 mi (1,544.89 km) |
| Tring to Orvieto | 864.75 mi (1,391.68 km) |
| Tring to Orzinuovi | 654.23 mi (1,052.88 km) |
| Tring to Osimo | 871.02 mi (1,401.77 km) |
| Tring to Ospitaletto | 651.27 mi (1,048.11 km) |
| Tring to Ostuni | 1,153.30 mi (1,856.05 km) |
| Tring to Ottaviano | 1,041.75 mi (1,676.53 km) |
| Tring to Ovada | 653.22 mi (1,051.26 km) |
| Tring to Ozieri | 900.26 mi (1,448.83 km) |
| Tring to Paceco | 1,148.88 mi (1,848.94 km) |
