| Karliova to Opwijk | 1,942.03 mi (3,125.39 km) |
| Karliova to Ostend | 1,999.10 mi (3,217.23 km) |
| Karliova to Oud-Heverlee | 1,919.66 mi (3,089.40 km) |
| Karliova to Oud-Turnhout | 1,912.48 mi (3,077.84 km) |
| Karliova to Oudenaarde | 1,965.72 mi (3,163.53 km) |
| Karliova to Oudenburg | 1,995.18 mi (3,210.93 km) |
| Karliova to Oupeye | 1,876.14 mi (3,019.35 km) |
| Karliova to Overijse | 1,924.79 mi (3,097.65 km) |
| Karliova to Overpelt | 1,892.74 mi (3,046.06 km) |
| Karliova to Paal | 1,900.66 mi (3,058.82 km) |
| Karliova to Peer | 1,890.00 mi (3,041.65 km) |
| Karliova to Pepinster | 1,866.81 mi (3,004.34 km) |
| Karliova to Peruwelz | 1,962.86 mi (3,158.92 km) |
| Karliova to Perwez | 1,910.73 mi (3,075.02 km) |
| Karliova to Philippeville | 1,917.40 mi (3,085.75 km) |
