| Chippenham to Montalegre | 717.61 mi (1,154.89 km) |
| Chippenham to Montemor-o-Novo | 932.95 mi (1,501.44 km) |
| Chippenham to Montemor-o-Velho | 841.05 mi (1,353.54 km) |
| Chippenham to Montijo | 941.74 mi (1,515.58 km) |
| Chippenham to Mortagua | 815.81 mi (1,312.92 km) |
| Chippenham to Moura | 956.49 mi (1,539.32 km) |
| Chippenham to Murtosa | 803.39 mi (1,292.93 km) |
| Chippenham to Nazare | 884.78 mi (1,423.91 km) |
| Chippenham to Nelas | 803.97 mi (1,293.86 km) |
| Chippenham to Obidos | 902.15 mi (1,451.87 km) |
| Chippenham to Odemira | 1,010.05 mi (1,625.51 km) |
| Chippenham to Odivelas | 939.54 mi (1,512.05 km) |
| Chippenham to Oeiras | 948.95 mi (1,527.18 km) |
| Chippenham to Olhao | 1,035.90 mi (1,667.12 km) |
| Chippenham to Oliveira de Azemeis | 793.59 mi (1,277.16 km) |
