| Cartaxo to Oerlinghausen | 1,217.28 mi (1,959.02 km) |
| Cartaxo to Oestrich-Winkel | 1,110.82 mi (1,787.69 km) |
| Cartaxo to Offenburg | 1,049.29 mi (1,688.66 km) |
| Cartaxo to Oftersheim | 1,107.69 mi (1,782.65 km) |
| Cartaxo to Ohrdruf | 1,242.38 mi (1,999.42 km) |
| Cartaxo to Ohringen | 1,136.48 mi (1,828.99 km) |
| Cartaxo to Olbernhau | 1,334.72 mi (2,148.02 km) |
| Cartaxo to Olching | 1,177.76 mi (1,895.43 km) |
| Cartaxo to Oldenburg | 1,257.10 mi (2,023.11 km) |
| Cartaxo to Oldenburg in Holstein | 1,391.62 mi (2,239.59 km) |
| Cartaxo to Olfen | 1,164.53 mi (1,874.13 km) |
| Cartaxo to Olpe | 1,147.88 mi (1,847.33 km) |
| Cartaxo to Olsberg | 1,184.25 mi (1,905.86 km) |
| Cartaxo to Oranienburg | 1,404.70 mi (2,260.65 km) |
| Cartaxo to Ortenberg | 1,163.11 mi (1,871.85 km) |
