| Kars to Opwijk | 1,979.15 mi (3,185.13 km) |
| Kars to Ostend | 2,035.46 mi (3,275.75 km) |
| Kars to Oud-Heverlee | 1,957.24 mi (3,149.87 km) |
| Kars to Oud-Turnhout | 1,947.45 mi (3,134.12 km) |
| Kars to Oudenaarde | 2,003.67 mi (3,224.59 km) |
| Kars to Oudenburg | 2,031.72 mi (3,269.73 km) |
| Kars to Oupeye | 1,913.88 mi (3,080.09 km) |
| Kars to Overijse | 1,962.67 mi (3,158.62 km) |
| Kars to Overpelt | 1,927.98 mi (3,102.79 km) |
| Kars to Paal | 1,936.95 mi (3,117.21 km) |
| Kars to Peer | 1,925.65 mi (3,099.04 km) |
| Kars to Pepinster | 1,905.19 mi (3,066.11 km) |
| Kars to Peruwelz | 2,002.46 mi (3,222.65 km) |
| Kars to Perwez | 1,949.30 mi (3,137.09 km) |
| Kars to Philippeville | 1,958.21 mi (3,151.44 km) |
