| Nitra to Montalegre | 1,332.31 mi (2,144.14 km) |
| Nitra to Montemor-o-Novo | 1,467.81 mi (2,362.21 km) |
| Nitra to Montemor-o-Velho | 1,430.17 mi (2,301.64 km) |
| Nitra to Montijo | 1,496.55 mi (2,408.46 km) |
| Nitra to Mortagua | 1,400.31 mi (2,253.58 km) |
| Nitra to Moura | 1,455.51 mi (2,342.41 km) |
| Nitra to Murtosa | 1,407.52 mi (2,265.19 km) |
| Nitra to Nazare | 1,468.39 mi (2,363.15 km) |
| Nitra to Nelas | 1,380.14 mi (2,221.12 km) |
| Nitra to Obidos | 1,481.64 mi (2,384.47 km) |
| Nitra to Odemira | 1,529.88 mi (2,462.11 km) |
| Nitra to Odivelas | 1,504.66 mi (2,421.52 km) |
| Nitra to Oeiras | 1,514.95 mi (2,438.07 km) |
| Nitra to Olhao | 1,519.55 mi (2,445.47 km) |
| Nitra to Oliveira de Azemeis | 1,396.64 mi (2,247.67 km) |
