| Piossasco to Octeville | 532.90 mi (857.62 km) |
| Piossasco to Oignies | 431.60 mi (694.60 km) |
| Piossasco to Oissel | 423.97 mi (682.31 km) |
| Piossasco to Olivet | 330.93 mi (532.58 km) |
| Piossasco to Ollioules | 151.00 mi (243.01 km) |
| Piossasco to Olonne-sur-Mer | 457.54 mi (736.34 km) |
| Piossasco to Oloron-Sainte-Marie | 419.07 mi (674.42 km) |
| Piossasco to Onet Village | 243.09 mi (391.22 km) |
| Piossasco to Onnaing | 413.85 mi (666.02 km) |
| Piossasco to Orange | 143.30 mi (230.61 km) |
| Piossasco to Orchies | 426.47 mi (686.34 km) |
| Piossasco to Orleans | 332.14 mi (534.53 km) |
| Piossasco to Orly | 352.87 mi (567.90 km) |
| Piossasco to Ormesson-sur-Marne | 350.35 mi (563.84 km) |
| Piossasco to Orsay | 357.31 mi (575.04 km) |
