| Celorico de Basto to Oerlinghausen | 1,071.87 mi (1,725.01 km) |
| Celorico de Basto to Oestrich-Winkel | 971.65 mi (1,563.72 km) |
| Celorico de Basto to Offenburg | 917.63 mi (1,476.78 km) |
| Celorico de Basto to Oftersheim | 972.56 mi (1,565.18 km) |
| Celorico de Basto to Ohrdruf | 1,104.39 mi (1,777.34 km) |
| Celorico de Basto to Ohringen | 1,003.91 mi (1,615.64 km) |
| Celorico de Basto to Olbernhau | 1,201.21 mi (1,933.16 km) |
| Celorico de Basto to Olching | 1,053.82 mi (1,695.96 km) |
| Celorico de Basto to Oldenburg | 1,107.70 mi (1,782.67 km) |
| Celorico de Basto to Oldenburg in Holstein | 1,242.71 mi (1,999.96 km) |
| Celorico de Basto to Olfen | 1,017.88 mi (1,638.11 km) |
| Celorico de Basto to Olpe | 1,004.34 mi (1,616.32 km) |
| Celorico de Basto to Olsberg | 1,040.61 mi (1,674.71 km) |
| Celorico de Basto to Oranienburg | 1,263.06 mi (2,032.69 km) |
| Celorico de Basto to Ortenberg | 1,024.32 mi (1,648.49 km) |
