| Gloucester to Montalegre | 741.12 mi (1,192.72 km) |
| Gloucester to Montemor-o-Novo | 957.30 mi (1,540.63 km) |
| Gloucester to Montemor-o-Velho | 864.43 mi (1,391.17 km) |
| Gloucester to Montijo | 965.51 mi (1,553.83 km) |
| Gloucester to Mortagua | 839.51 mi (1,351.07 km) |
| Gloucester to Moura | 981.58 mi (1,579.70 km) |
| Gloucester to Murtosa | 826.56 mi (1,330.22 km) |
| Gloucester to Nazare | 908.04 mi (1,461.35 km) |
| Gloucester to Nelas | 828.00 mi (1,332.54 km) |
| Gloucester to Obidos | 925.43 mi (1,489.33 km) |
| Gloucester to Odemira | 1,034.38 mi (1,664.67 km) |
| Gloucester to Odivelas | 963.03 mi (1,549.85 km) |
| Gloucester to Oeiras | 972.35 mi (1,564.85 km) |
| Gloucester to Olhao | 1,060.95 mi (1,707.44 km) |
| Gloucester to Oliveira de Azemeis | 816.87 mi (1,314.63 km) |
