| Roskilde to Montemor-o-Novo | 1,501.44 mi (2,416.34 km) |
| Roskilde to Montemor-o-Velho | 1,427.41 mi (2,297.20 km) |
| Roskilde to Montijo | 1,519.19 mi (2,444.90 km) |
| Roskilde to Mortagua | 1,398.80 mi (2,251.15 km) |
| Roskilde to Moura | 1,510.49 mi (2,430.90 km) |
| Roskilde to Murtosa | 1,393.82 mi (2,243.13 km) |
| Roskilde to Nazare | 1,471.21 mi (2,367.68 km) |
| Roskilde to Nelas | 1,382.67 mi (2,225.20 km) |
| Roskilde to Obidos | 1,487.79 mi (2,394.36 km) |
| Roskilde to Odemira | 1,576.13 mi (2,536.54 km) |
| Roskilde to Odivelas | 1,521.16 mi (2,448.07 km) |
| Roskilde to Oeiras | 1,531.39 mi (2,464.53 km) |
| Roskilde to Olhao | 1,587.46 mi (2,554.77 km) |
| Roskilde to Oliveira de Azemeis | 1,383.01 mi (2,225.75 km) |
| Roskilde to Oliveira de Frades | 1,381.20 mi (2,222.83 km) |
