| Arouca to Montemor-o-Novo | 157.80 mi (253.96 km) |
| Arouca to Montemor-o-Velho | 57.78 mi (92.99 km) |
| Arouca to Montijo | 159.33 mi (256.42 km) |
| Arouca to Mortagua | 34.59 mi (55.66 km) |
| Arouca to Moura | 198.08 mi (318.77 km) |
| Arouca to Murtosa | 24.58 mi (39.56 km) |
| Arouca to Nazare | 101.83 mi (163.88 km) |
| Arouca to Nelas | 35.47 mi (57.08 km) |
| Arouca to Obidos | 119.07 mi (191.62 km) |
| Arouca to Odemira | 232.43 mi (374.06 km) |
| Arouca to Odivelas | 156.18 mi (251.34 km) |
| Arouca to Oeiras | 165.57 mi (266.46 km) |
| Arouca to Olhao | 270.87 mi (435.93 km) |
| Arouca to Oliveira de Azemeis | 13.66 mi (21.98 km) |
| Arouca to Oliveira de Frades | 15.34 mi (24.69 km) |
