| Targu Secuiesc to Opwijk | 1,057.91 mi (1,702.54 km) |
| Targu Secuiesc to Ostend | 1,115.04 mi (1,794.48 km) |
| Targu Secuiesc to Oud-Heverlee | 1,035.52 mi (1,666.52 km) |
| Targu Secuiesc to Oud-Turnhout | 1,028.74 mi (1,655.60 km) |
| Targu Secuiesc to Oudenaarde | 1,081.57 mi (1,740.63 km) |
| Targu Secuiesc to Oudenburg | 1,111.10 mi (1,788.14 km) |
| Targu Secuiesc to Oupeye | 992.00 mi (1,596.47 km) |
| Targu Secuiesc to Overijse | 1,040.64 mi (1,674.75 km) |
| Targu Secuiesc to Overpelt | 1,008.94 mi (1,623.73 km) |
| Targu Secuiesc to Paal | 1,016.65 mi (1,636.15 km) |
| Targu Secuiesc to Peer | 1,006.11 mi (1,619.17 km) |
| Targu Secuiesc to Pepinster | 982.66 mi (1,581.44 km) |
| Targu Secuiesc to Peruwelz | 1,078.83 mi (1,736.20 km) |
| Targu Secuiesc to Perwez | 1,026.59 mi (1,652.14 km) |
| Targu Secuiesc to Philippeville | 1,033.58 mi (1,663.38 km) |
