| Koper to Nowy Dwor Mazowiecki | 570.75 mi (918.53 km) |
| Koper to Nowy Sacz | 429.27 mi (690.85 km) |
| Koper to Nowy Targ | 398.79 mi (641.79 km) |
| Koper to Nowy Tomysl | 479.98 mi (772.46 km) |
| Koper to Nysa | 378.47 mi (609.09 km) |
| Koper to Oborniki | 509.88 mi (820.58 km) |
| Koper to Oborniki Slaskie | 422.82 mi (680.46 km) |
| Koper to Olawa | 406.43 mi (654.08 km) |
| Koper to Olecko | 703.45 mi (1,132.09 km) |
| Koper to Olesnica | 424.67 mi (683.44 km) |
| Koper to Olesno | 426.25 mi (685.98 km) |
| Koper to Olkusz | 423.75 mi (681.96 km) |
| Koper to Olsztyn | 642.90 mi (1,034.65 km) |
| Koper to Opalenica | 482.42 mi (776.38 km) |
| Koper to Opoczno | 501.82 mi (807.61 km) |
