| Iisalmi to Opwijk | 1,210.27 mi (1,947.74 km) |
| Iisalmi to Ostend | 1,228.08 mi (1,976.41 km) |
| Iisalmi to Oud-Heverlee | 1,205.75 mi (1,940.46 km) |
| Iisalmi to Oud-Turnhout | 1,170.50 mi (1,883.74 km) |
| Iisalmi to Oudenaarde | 1,231.58 mi (1,982.03 km) |
| Iisalmi to Oudenburg | 1,228.35 mi (1,976.84 km) |
| Iisalmi to Oupeye | 1,188.99 mi (1,913.49 km) |
| Iisalmi to Overijse | 1,211.90 mi (1,950.37 km) |
| Iisalmi to Overpelt | 1,165.42 mi (1,875.57 km) |
| Iisalmi to Paal | 1,181.52 mi (1,901.48 km) |
| Iisalmi to Peer | 1,169.29 mi (1,881.79 km) |
| Iisalmi to Pepinster | 1,192.98 mi (1,919.92 km) |
| Iisalmi to Peruwelz | 1,250.79 mi (2,012.96 km) |
| Iisalmi to Perwez | 1,214.01 mi (1,953.76 km) |
| Iisalmi to Philippeville | 1,244.84 mi (2,003.38 km) |
