| Keila to Opwijk | 979.06 mi (1,575.65 km) |
| Keila to Ostend | 1,007.06 mi (1,620.70 km) |
| Keila to Oud-Heverlee | 970.41 mi (1,561.73 km) |
| Keila to Oud-Turnhout | 937.29 mi (1,508.42 km) |
| Keila to Oudenaarde | 1,003.00 mi (1,614.18 km) |
| Keila to Oudenburg | 1,006.43 mi (1,619.70 km) |
| Keila to Oupeye | 946.59 mi (1,523.39 km) |
| Keila to Overijse | 976.98 mi (1,572.30 km) |
| Keila to Overpelt | 928.60 mi (1,494.44 km) |
| Keila to Paal | 944.74 mi (1,520.41 km) |
| Keila to Peer | 931.52 mi (1,499.14 km) |
| Keila to Pepinster | 948.42 mi (1,526.33 km) |
| Keila to Peruwelz | 1,019.55 mi (1,640.80 km) |
| Keila to Perwez | 976.06 mi (1,570.82 km) |
| Keila to Philippeville | 1,005.22 mi (1,617.75 km) |
