| Backa Topola to Orbetello | 478.03 mi (769.32 km) |
| Backa Topola to Oria | 380.89 mi (612.99 km) |
| Backa Topola to Oristano | 691.43 mi (1,112.74 km) |
| Backa Topola to Orta Nova | 366.78 mi (590.27 km) |
| Backa Topola to Orte | 427.42 mi (687.87 km) |
| Backa Topola to Ortona | 353.18 mi (568.39 km) |
| Backa Topola to Orvieto | 429.12 mi (690.61 km) |
| Backa Topola to Orzinuovi | 469.44 mi (755.49 km) |
| Backa Topola to Osimo | 342.47 mi (551.15 km) |
| Backa Topola to Ospitaletto | 461.52 mi (742.74 km) |
| Backa Topola to Ostuni | 366.02 mi (589.05 km) |
| Backa Topola to Ottaviano | 429.80 mi (691.69 km) |
| Backa Topola to Ovada | 540.35 mi (869.61 km) |
| Backa Topola to Ozieri | 645.14 mi (1,038.25 km) |
| Backa Topola to Paceco | 651.80 mi (1,048.98 km) |
