| Hipperholme to Orbetello | 981.40 mi (1,579.41 km) |
| Hipperholme to Oria | 1,284.57 mi (2,067.32 km) |
| Hipperholme to Oristano | 1,071.55 mi (1,724.49 km) |
| Hipperholme to Orta Nova | 1,177.71 mi (1,895.34 km) |
| Hipperholme to Orte | 1,013.62 mi (1,631.26 km) |
| Hipperholme to Ortona | 1,080.73 mi (1,739.26 km) |
| Hipperholme to Orvieto | 990.97 mi (1,594.81 km) |
| Hipperholme to Orzinuovi | 777.76 mi (1,251.69 km) |
| Hipperholme to Osimo | 990.56 mi (1,594.14 km) |
| Hipperholme to Ospitaletto | 773.58 mi (1,244.96 km) |
| Hipperholme to Ostuni | 1,270.30 mi (2,044.35 km) |
| Hipperholme to Ottaviano | 1,166.64 mi (1,877.52 km) |
| Hipperholme to Ovada | 783.93 mi (1,261.62 km) |
| Hipperholme to Ozieri | 1,037.82 mi (1,670.22 km) |
| Hipperholme to Paceco | 1,283.29 mi (2,065.26 km) |
