| Povoa de Santa Iria to Orbetello | 1,088.67 mi (1,752.05 km) |
| Povoa de Santa Iria to Oria | 1,418.97 mi (2,283.60 km) |
| Povoa de Santa Iria to Oristano | 944.34 mi (1,519.76 km) |
| Povoa de Santa Iria to Orta Nova | 1,316.24 mi (2,118.29 km) |
| Povoa de Santa Iria to Orte | 1,148.35 mi (1,848.09 km) |
| Povoa de Santa Iria to Ortona | 1,250.24 mi (2,012.07 km) |
| Povoa de Santa Iria to Orvieto | 1,136.20 mi (1,828.54 km) |
| Povoa de Santa Iria to Orzinuovi | 1,069.88 mi (1,721.81 km) |
| Povoa de Santa Iria to Osimo | 1,211.39 mi (1,949.55 km) |
| Povoa de Santa Iria to Ospitaletto | 1,079.71 mi (1,737.62 km) |
| Povoa de Santa Iria to Ostuni | 1,415.27 mi (2,277.66 km) |
| Povoa de Santa Iria to Ottaviano | 1,252.62 mi (2,015.90 km) |
| Povoa de Santa Iria to Ovada | 993.92 mi (1,599.56 km) |
| Povoa de Santa Iria to Ozieri | 966.02 mi (1,554.66 km) |
| Povoa de Santa Iria to Paceco | 1,169.10 mi (1,881.48 km) |
