| Kos to Opwijk | 1,494.66 mi (2,405.43 km) |
| Kos to Ostend | 1,550.87 mi (2,495.89 km) |
| Kos to Oud-Heverlee | 1,471.92 mi (2,368.82 km) |
| Kos to Oud-Turnhout | 1,478.63 mi (2,379.63 km) |
| Kos to Oudenaarde | 1,512.22 mi (2,433.68 km) |
| Kos to Oudenburg | 1,546.38 mi (2,488.65 km) |
| Kos to Oupeye | 1,431.42 mi (2,303.66 km) |
| Kos to Overijse | 1,475.01 mi (2,373.80 km) |
| Kos to Overpelt | 1,459.24 mi (2,348.43 km) |
| Kos to Paal | 1,461.16 mi (2,351.51 km) |
| Kos to Peer | 1,454.66 mi (2,341.04 km) |
| Kos to Pepinster | 1,419.67 mi (2,284.74 km) |
| Kos to Peruwelz | 1,501.25 mi (2,416.03 km) |
| Kos to Perwez | 1,458.73 mi (2,347.59 km) |
| Kos to Philippeville | 1,453.42 mi (2,339.05 km) |
