| Piotrkow Trybunalski to Oerlinghausen | 473.10 mi (761.38 km) |
| Piotrkow Trybunalski to Oestrich-Winkel | 519.77 mi (836.49 km) |
| Piotrkow Trybunalski to Offenburg | 559.71 mi (900.77 km) |
| Piotrkow Trybunalski to Oftersheim | 508.09 mi (817.70 km) |
| Piotrkow Trybunalski to Ohrdruf | 389.99 mi (627.62 km) |
| Piotrkow Trybunalski to Ohringen | 473.97 mi (762.79 km) |
| Piotrkow Trybunalski to Olbernhau | 280.43 mi (451.31 km) |
| Piotrkow Trybunalski to Olching | 433.33 mi (697.37 km) |
| Piotrkow Trybunalski to Oldenburg | 499.06 mi (803.16 km) |
| Piotrkow Trybunalski to Oldenburg in Holstein | 417.88 mi (672.52 km) |
| Piotrkow Trybunalski to Olfen | 528.19 mi (850.04 km) |
| Piotrkow Trybunalski to Olpe | 513.06 mi (825.70 km) |
| Piotrkow Trybunalski to Olsberg | 482.59 mi (776.66 km) |
| Piotrkow Trybunalski to Oranienburg | 289.18 mi (465.39 km) |
| Piotrkow Trybunalski to Ortenberg | 468.49 mi (753.97 km) |
