| Middle River to Nowy Dwor Mazowiecki | 4,397.62 mi (7,077.29 km) |
| Middle River to Nowy Sacz | 4,498.80 mi (7,240.12 km) |
| Middle River to Nowy Targ | 4,478.71 mi (7,207.79 km) |
| Middle River to Nowy Tomysl | 4,233.63 mi (6,813.37 km) |
| Middle River to Nysa | 4,340.77 mi (6,985.79 km) |
| Middle River to Oborniki | 4,247.99 mi (6,836.47 km) |
| Middle River to Oborniki Slaskie | 4,296.22 mi (6,914.09 km) |
| Middle River to Olawa | 4,323.66 mi (6,958.25 km) |
| Middle River to Olecko | 4,403.15 mi (7,086.18 km) |
| Middle River to Olesnica | 4,317.71 mi (6,948.68 km) |
| Middle River to Olesno | 4,367.82 mi (7,029.33 km) |
| Middle River to Olkusz | 4,432.10 mi (7,132.78 km) |
| Middle River to Olsztyn | 4,341.69 mi (6,987.28 km) |
| Middle River to Opalenica | 4,244.34 mi (6,830.61 km) |
| Middle River to Opoczno | 4,419.73 mi (7,112.86 km) |
