| Chepstow to Montalegre | 719.94 mi (1,158.63 km) |
| Chepstow to Montemor-o-Novo | 936.71 mi (1,507.49 km) |
| Chepstow to Montemor-o-Velho | 843.13 mi (1,356.89 km) |
| Chepstow to Montijo | 944.46 mi (1,519.96 km) |
| Chepstow to Mortagua | 818.44 mi (1,317.16 km) |
| Chepstow to Moura | 961.65 mi (1,547.63 km) |
| Chepstow to Murtosa | 805.13 mi (1,295.73 km) |
| Chepstow to Nazare | 886.65 mi (1,426.93 km) |
| Chepstow to Nelas | 807.19 mi (1,299.04 km) |
| Chepstow to Obidos | 904.05 mi (1,454.93 km) |
| Chepstow to Odemira | 1,013.75 mi (1,631.48 km) |
| Chepstow to Odivelas | 941.78 mi (1,515.65 km) |
| Chepstow to Oeiras | 951.05 mi (1,530.57 km) |
| Chepstow to Olhao | 1,040.97 mi (1,675.28 km) |
| Chepstow to Oliveira de Azemeis | 795.51 mi (1,280.26 km) |
