| Mangualde to Oerlinghausen | 1,104.88 mi (1,778.13 km) |
| Mangualde to Oestrich-Winkel | 1,000.46 mi (1,610.08 km) |
| Mangualde to Offenburg | 941.85 mi (1,515.76 km) |
| Mangualde to Oftersheim | 998.88 mi (1,607.54 km) |
| Mangualde to Ohrdruf | 1,132.54 mi (1,822.65 km) |
| Mangualde to Ohringen | 1,028.74 mi (1,655.60 km) |
| Mangualde to Olbernhau | 1,226.73 mi (1,974.24 km) |
| Mangualde to Olching | 1,073.90 mi (1,728.27 km) |
| Mangualde to Oldenburg | 1,143.66 mi (1,840.54 km) |
| Mangualde to Oldenburg in Holstein | 1,278.32 mi (2,057.25 km) |
| Mangualde to Olfen | 1,051.75 mi (1,692.64 km) |
| Mangualde to Olpe | 1,036.03 mi (1,667.32 km) |
| Mangualde to Olsberg | 1,072.38 mi (1,725.83 km) |
| Mangualde to Oranienburg | 1,293.59 mi (2,081.84 km) |
| Mangualde to Ortenberg | 1,052.93 mi (1,694.52 km) |
