| Hollviken to Orbetello | 900.03 mi (1,448.46 km) |
| Hollviken to Oria | 1,052.58 mi (1,693.96 km) |
| Hollviken to Oristano | 1,090.18 mi (1,754.48 km) |
| Hollviken to Orta Nova | 981.26 mi (1,579.18 km) |
| Hollviken to Orte | 895.56 mi (1,441.26 km) |
| Hollviken to Ortona | 905.17 mi (1,456.73 km) |
| Hollviken to Orvieto | 878.18 mi (1,413.30 km) |
| Hollviken to Orzinuovi | 704.55 mi (1,133.86 km) |
| Hollviken to Osimo | 824.86 mi (1,327.48 km) |
| Hollviken to Ospitaletto | 692.84 mi (1,115.01 km) |
| Hollviken to Ostuni | 1,036.25 mi (1,667.68 km) |
| Hollviken to Ottaviano | 1,008.86 mi (1,623.60 km) |
| Hollviken to Ovada | 768.39 mi (1,236.60 km) |
| Hollviken to Ozieri | 1,040.47 mi (1,674.47 km) |
| Hollviken to Paceco | 1,204.68 mi (1,938.74 km) |
