| Cacem to Oerlinghausen | 1,255.26 mi (2,020.15 km) |
| Cacem to Oestrich-Winkel | 1,149.18 mi (1,849.42 km) |
| Cacem to Offenburg | 1,087.79 mi (1,750.63 km) |
| Cacem to Oftersheim | 1,146.16 mi (1,844.57 km) |
| Cacem to Ohrdruf | 1,280.79 mi (2,061.24 km) |
| Cacem to Ohringen | 1,174.98 mi (1,890.95 km) |
| Cacem to Olbernhau | 1,373.22 mi (2,209.98 km) |
| Cacem to Olching | 1,216.17 mi (1,957.24 km) |
| Cacem to Oldenburg | 1,294.64 mi (2,083.52 km) |
| Cacem to Oldenburg in Holstein | 1,429.24 mi (2,300.14 km) |
| Cacem to Olfen | 1,202.39 mi (1,935.06 km) |
| Cacem to Olpe | 1,186.00 mi (1,908.68 km) |
| Cacem to Olsberg | 1,222.37 mi (1,967.21 km) |
| Cacem to Oranienburg | 1,442.97 mi (2,322.24 km) |
| Cacem to Ortenberg | 1,201.49 mi (1,933.61 km) |
