| Rio Maior to Nowy Dwor Mazowiecki | 1,671.00 mi (2,689.21 km) |
| Rio Maior to Nowy Sacz | 1,610.42 mi (2,591.72 km) |
| Rio Maior to Nowy Targ | 1,578.13 mi (2,539.76 km) |
| Rio Maior to Nowy Tomysl | 1,491.05 mi (2,399.62 km) |
| Rio Maior to Nysa | 1,486.44 mi (2,392.20 km) |
| Rio Maior to Oborniki | 1,527.11 mi (2,457.65 km) |
| Rio Maior to Oborniki Slaskie | 1,490.69 mi (2,399.04 km) |
| Rio Maior to Olawa | 1,496.81 mi (2,408.88 km) |
| Rio Maior to Olecko | 1,780.03 mi (2,864.67 km) |
| Rio Maior to Olesnica | 1,507.18 mi (2,425.56 km) |
| Rio Maior to Olesno | 1,540.66 mi (2,479.46 km) |
| Rio Maior to Olkusz | 1,574.84 mi (2,534.46 km) |
| Rio Maior to Olsztyn | 1,697.39 mi (2,731.69 km) |
| Rio Maior to Opalenica | 1,501.35 mi (2,416.18 km) |
| Rio Maior to Opoczno | 1,628.72 mi (2,621.18 km) |
