| Rome to Montemor-o-Novo | 1,111.10 mi (1,788.14 km) |
| Rome to Montemor-o-Velho | 1,106.80 mi (1,781.22 km) |
| Rome to Montijo | 1,145.42 mi (1,843.38 km) |
| Rome to Mortagua | 1,079.64 mi (1,737.51 km) |
| Rome to Moura | 1,083.61 mi (1,743.89 km) |
| Rome to Murtosa | 1,096.01 mi (1,763.85 km) |
| Rome to Nazare | 1,136.02 mi (1,828.25 km) |
| Rome to Nelas | 1,058.73 mi (1,703.86 km) |
| Rome to Obidos | 1,145.14 mi (1,842.92 km) |
| Rome to Odemira | 1,157.45 mi (1,862.73 km) |
| Rome to Odivelas | 1,157.52 mi (1,862.85 km) |
| Rome to Oeiras | 1,166.81 mi (1,877.79 km) |
| Rome to Olhao | 1,131.98 mi (1,821.74 km) |
| Rome to Oliveira de Azemeis | 1,086.48 mi (1,748.51 km) |
| Rome to Oliveira de Frades | 1,073.11 mi (1,727.01 km) |
