| Ercolano to Montemor-o-Novo | 1,205.00 mi (1,939.26 km) |
| Ercolano to Montemor-o-Velho | 1,207.75 mi (1,943.69 km) |
| Ercolano to Montijo | 1,240.17 mi (1,995.87 km) |
| Ercolano to Mortagua | 1,181.43 mi (1,901.32 km) |
| Ercolano to Moura | 1,174.18 mi (1,889.65 km) |
| Ercolano to Murtosa | 1,199.25 mi (1,930.00 km) |
| Ercolano to Nazare | 1,234.87 mi (1,987.34 km) |
| Ercolano to Nelas | 1,160.65 mi (1,867.89 km) |
| Ercolano to Obidos | 1,243.04 mi (2,000.48 km) |
| Ercolano to Odemira | 1,246.91 mi (2,006.71 km) |
| Ercolano to Odivelas | 1,253.01 mi (2,016.53 km) |
| Ercolano to Oeiras | 1,261.97 mi (2,030.94 km) |
| Ercolano to Olhao | 1,217.66 mi (1,959.64 km) |
| Ercolano to Oliveira de Azemeis | 1,190.07 mi (1,915.23 km) |
| Ercolano to Oliveira de Frades | 1,176.05 mi (1,892.67 km) |
