| Piossasco to Oerlinghausen | 485.12 mi (780.73 km) |
| Piossasco to Oestrich-Winkel | 347.02 mi (558.47 km) |
| Piossasco to Offenburg | 241.20 mi (388.18 km) |
| Piossasco to Oftersheim | 307.16 mi (494.33 km) |
| Piossasco to Ohrdruf | 430.70 mi (693.15 km) |
| Piossasco to Ohringen | 306.18 mi (492.74 km) |
| Piossasco to Olbernhau | 477.09 mi (767.80 km) |
| Piossasco to Olching | 287.39 mi (462.50 km) |
| Piossasco to Oldenburg | 564.35 mi (908.24 km) |
| Piossasco to Oldenburg in Holstein | 660.96 mi (1,063.71 km) |
| Piossasco to Olfen | 464.74 mi (747.93 km) |
| Piossasco to Olpe | 416.71 mi (670.63 km) |
| Piossasco to Olsberg | 441.88 mi (711.14 km) |
| Piossasco to Oranienburg | 596.69 mi (960.27 km) |
| Piossasco to Ortenberg | 378.00 mi (608.33 km) |
