| Miercurea-Ciuc to Opwijk | 1,032.25 mi (1,661.25 km) |
| Miercurea-Ciuc to Ostend | 1,089.26 mi (1,753.00 km) |
| Miercurea-Ciuc to Oud-Heverlee | 1,009.95 mi (1,625.36 km) |
| Miercurea-Ciuc to Oud-Turnhout | 1,002.64 mi (1,613.60 km) |
| Miercurea-Ciuc to Oudenaarde | 1,056.10 mi (1,699.63 km) |
| Miercurea-Ciuc to Oudenburg | 1,085.36 mi (1,746.72 km) |
| Miercurea-Ciuc to Oupeye | 966.44 mi (1,555.33 km) |
| Miercurea-Ciuc to Overijse | 1,015.13 mi (1,633.70 km) |
| Miercurea-Ciuc to Overpelt | 982.88 mi (1,581.80 km) |
| Miercurea-Ciuc to Paal | 990.81 mi (1,594.55 km) |
| Miercurea-Ciuc to Peer | 980.13 mi (1,577.37 km) |
| Miercurea-Ciuc to Pepinster | 957.23 mi (1,540.52 km) |
| Miercurea-Ciuc to Peruwelz | 1,053.70 mi (1,695.76 km) |
| Miercurea-Ciuc to Perwez | 1,001.22 mi (1,611.31 km) |
| Miercurea-Ciuc to Philippeville | 1,008.70 mi (1,623.34 km) |
