| Penrith to Orbetello | 1,054.95 mi (1,697.78 km) |
| Penrith to Oria | 1,354.37 mi (2,179.66 km) |
| Penrith to Oristano | 1,146.78 mi (1,845.56 km) |
| Penrith to Orta Nova | 1,248.49 mi (2,009.24 km) |
| Penrith to Orte | 1,086.29 mi (1,748.21 km) |
| Penrith to Ortona | 1,151.76 mi (1,853.58 km) |
| Penrith to Orvieto | 1,063.67 mi (1,711.80 km) |
| Penrith to Orzinuovi | 849.99 mi (1,367.92 km) |
| Penrith to Osimo | 1,061.32 mi (1,708.03 km) |
| Penrith to Ospitaletto | 845.49 mi (1,360.68 km) |
| Penrith to Ostuni | 1,339.93 mi (2,156.42 km) |
| Penrith to Ottaviano | 1,238.83 mi (1,993.70 km) |
| Penrith to Ovada | 857.92 mi (1,380.68 km) |
| Penrith to Ozieri | 1,112.95 mi (1,791.12 km) |
| Penrith to Paceco | 1,357.87 mi (2,185.28 km) |
