| Pianezza to Oerlinghausen | 476.80 mi (767.34 km) |
| Pianezza to Oestrich-Winkel | 338.82 mi (545.28 km) |
| Pianezza to Offenburg | 232.95 mi (374.89 km) |
| Pianezza to Oftersheim | 298.68 mi (480.68 km) |
| Pianezza to Ohrdruf | 421.90 mi (678.99 km) |
| Pianezza to Ohringen | 297.42 mi (478.65 km) |
| Pianezza to Olbernhau | 468.29 mi (753.64 km) |
| Pianezza to Olching | 278.73 mi (448.57 km) |
| Pianezza to Oldenburg | 556.20 mi (895.12 km) |
| Pianezza to Oldenburg in Holstein | 652.36 mi (1,049.87 km) |
| Pianezza to Olfen | 456.83 mi (735.19 km) |
| Pianezza to Olpe | 408.62 mi (657.61 km) |
| Pianezza to Olsberg | 433.59 mi (697.79 km) |
| Pianezza to Oranienburg | 587.83 mi (946.03 km) |
| Pianezza to Ortenberg | 369.46 mi (594.59 km) |
