| Karis to Opwijk | 981.57 mi (1,579.68 km) |
| Karis to Ostend | 1,006.49 mi (1,619.78 km) |
| Karis to Oud-Heverlee | 974.23 mi (1,567.87 km) |
| Karis to Oud-Turnhout | 940.27 mi (1,513.23 km) |
| Karis to Oudenaarde | 1,004.76 mi (1,617.00 km) |
| Karis to Oudenburg | 1,006.13 mi (1,619.21 km) |
| Karis to Oupeye | 952.70 mi (1,533.22 km) |
| Karis to Overijse | 980.69 mi (1,578.27 km) |
| Karis to Overpelt | 932.75 mi (1,501.11 km) |
| Karis to Paal | 948.94 mi (1,527.17 km) |
| Karis to Peer | 936.00 mi (1,506.34 km) |
| Karis to Pepinster | 955.29 mi (1,537.39 km) |
| Karis to Peruwelz | 1,022.22 mi (1,645.10 km) |
| Karis to Perwez | 980.77 mi (1,578.40 km) |
| Karis to Philippeville | 1,010.59 mi (1,626.40 km) |
