| Forssa to Opwijk | 1,008.13 mi (1,622.43 km) |
| Forssa to Ostend | 1,030.68 mi (1,658.72 km) |
| Forssa to Oud-Heverlee | 1,001.77 mi (1,612.20 km) |
| Forssa to Oud-Turnhout | 967.29 mi (1,556.70 km) |
| Forssa to Oudenaarde | 1,030.71 mi (1,658.77 km) |
| Forssa to Oudenburg | 1,030.53 mi (1,658.48 km) |
| Forssa to Oupeye | 981.94 mi (1,580.29 km) |
| Forssa to Overijse | 1,008.13 mi (1,622.43 km) |
| Forssa to Overpelt | 960.63 mi (1,545.98 km) |
| Forssa to Paal | 976.82 mi (1,572.03 km) |
| Forssa to Peer | 964.11 mi (1,551.58 km) |
| Forssa to Pepinster | 985.07 mi (1,585.31 km) |
| Forssa to Peruwelz | 1,048.81 mi (1,687.90 km) |
| Forssa to Perwez | 1,008.94 mi (1,623.74 km) |
| Forssa to Philippeville | 1,039.18 mi (1,672.40 km) |
