| Covasna to Opwijk | 1,064.47 mi (1,713.11 km) |
| Covasna to Ostend | 1,121.66 mi (1,805.14 km) |
| Covasna to Oud-Heverlee | 1,042.05 mi (1,677.02 km) |
| Covasna to Oud-Turnhout | 1,035.54 mi (1,666.55 km) |
| Covasna to Oudenaarde | 1,088.05 mi (1,751.04 km) |
| Covasna to Oudenburg | 1,117.71 mi (1,798.78 km) |
| Covasna to Oupeye | 998.52 mi (1,606.96 km) |
| Covasna to Overijse | 1,047.13 mi (1,685.19 km) |
| Covasna to Overpelt | 1,015.72 mi (1,634.65 km) |
| Covasna to Paal | 1,023.32 mi (1,646.88 km) |
| Covasna to Peer | 1,012.85 mi (1,630.03 km) |
| Covasna to Pepinster | 989.12 mi (1,591.83 km) |
| Covasna to Peruwelz | 1,085.12 mi (1,746.34 km) |
| Covasna to Perwez | 1,033.01 mi (1,662.47 km) |
| Covasna to Philippeville | 1,039.75 mi (1,673.31 km) |
