| Bilecik to Oerlinghausen | 1,299.89 mi (2,091.96 km) |
| Bilecik to Oestrich-Winkel | 1,263.15 mi (2,032.84 km) |
| Bilecik to Offenburg | 1,226.27 mi (1,973.49 km) |
| Bilecik to Oftersheim | 1,221.69 mi (1,966.12 km) |
| Bilecik to Ohrdruf | 1,183.09 mi (1,904.00 km) |
| Bilecik to Ohringen | 1,179.19 mi (1,897.73 km) |
| Bilecik to Olbernhau | 1,082.08 mi (1,741.44 km) |
| Bilecik to Olching | 1,075.26 mi (1,730.46 km) |
| Bilecik to Oldenburg | 1,358.68 mi (2,186.58 km) |
| Bilecik to Oldenburg in Holstein | 1,318.06 mi (2,121.21 km) |
| Bilecik to Olfen | 1,339.34 mi (2,155.45 km) |
| Bilecik to Olpe | 1,299.95 mi (2,092.07 km) |
| Bilecik to Olsberg | 1,285.70 mi (2,069.13 km) |
| Bilecik to Oranienburg | 1,175.17 mi (1,891.26 km) |
| Bilecik to Ortenberg | 1,231.62 mi (1,982.10 km) |
