| Middelkerke to Nowy Sacz | 792.64 mi (1,275.64 km) |
| Middelkerke to Nowy Targ | 766.00 mi (1,232.76 km) |
| Middelkerke to Nowy Tomysl | 574.01 mi (923.78 km) |
| Middelkerke to Nysa | 634.34 mi (1,020.87 km) |
| Middelkerke to Oborniki | 604.05 mi (972.13 km) |
| Middelkerke to Oborniki Slaskie | 608.25 mi (978.89 km) |
| Middelkerke to Olawa | 628.07 mi (1,010.79 km) |
| Middelkerke to Olecko | 845.87 mi (1,361.30 km) |
| Middelkerke to Olesnica | 629.61 mi (1,013.26 km) |
| Middelkerke to Olesno | 676.84 mi (1,089.26 km) |
| Middelkerke to Olkusz | 733.37 mi (1,180.25 km) |
| Middelkerke to Olsztyn | 762.23 mi (1,226.70 km) |
| Middelkerke to Opalenica | 585.82 mi (942.78 km) |
| Middelkerke to Opoczno | 753.25 mi (1,212.24 km) |
| Middelkerke to Opole | 658.05 mi (1,059.03 km) |
