| Cabeceiras de Basto to Oerlinghausen | 1,064.69 mi (1,713.45 km) |
| Cabeceiras de Basto to Oestrich-Winkel | 965.22 mi (1,553.37 km) |
| Cabeceiras de Basto to Offenburg | 912.03 mi (1,467.77 km) |
| Cabeceiras de Basto to Oftersheim | 966.57 mi (1,555.55 km) |
| Cabeceiras de Basto to Ohrdruf | 1,098.05 mi (1,767.13 km) |
| Cabeceiras de Basto to Ohringen | 998.18 mi (1,606.42 km) |
| Cabeceiras de Basto to Olbernhau | 1,195.32 mi (1,923.68 km) |
| Cabeceiras de Basto to Olching | 1,048.93 mi (1,688.09 km) |
| Cabeceiras de Basto to Oldenburg | 1,100.00 mi (1,770.28 km) |
| Cabeceiras de Basto to Oldenburg in Holstein | 1,235.06 mi (1,987.64 km) |
| Cabeceiras de Basto to Olfen | 1,010.55 mi (1,626.33 km) |
| Cabeceiras de Basto to Olpe | 997.40 mi (1,605.15 km) |
| Cabeceiras de Basto to Olsberg | 1,033.65 mi (1,663.50 km) |
| Cabeceiras de Basto to Oranienburg | 1,256.27 mi (2,021.77 km) |
| Cabeceiras de Basto to Ortenberg | 1,017.92 mi (1,638.18 km) |
