| Kauniainen to Opwijk | 1,018.43 mi (1,639.01 km) |
| Kauniainen to Ostend | 1,043.82 mi (1,679.87 km) |
| Kauniainen to Oud-Heverlee | 1,010.87 mi (1,626.83 km) |
| Kauniainen to Oud-Turnhout | 977.05 mi (1,572.41 km) |
| Kauniainen to Oudenaarde | 1,041.75 mi (1,676.54 km) |
| Kauniainen to Oudenburg | 1,043.43 mi (1,679.24 km) |
| Kauniainen to Oupeye | 988.89 mi (1,591.47 km) |
| Kauniainen to Overijse | 1,017.35 mi (1,637.26 km) |
| Kauniainen to Overpelt | 969.31 mi (1,559.96 km) |
| Kauniainen to Paal | 985.50 mi (1,586.01 km) |
| Kauniainen to Peer | 972.50 mi (1,565.09 km) |
| Kauniainen to Pepinster | 991.33 mi (1,595.38 km) |
| Kauniainen to Peruwelz | 1,059.07 mi (1,704.40 km) |
| Kauniainen to Perwez | 1,017.25 mi (1,637.10 km) |
| Kauniainen to Philippeville | 1,046.95 mi (1,684.90 km) |
