| Middleburg to Montalegre | 4,097.27 mi (6,593.91 km) |
| Middleburg to Montemor-o-Novo | 4,133.42 mi (6,652.09 km) |
| Middleburg to Montemor-o-Velho | 4,081.38 mi (6,568.35 km) |
| Middleburg to Montijo | 4,097.33 mi (6,594.02 km) |
| Middleburg to Mortagua | 4,099.52 mi (6,597.54 km) |
| Middleburg to Moura | 4,183.33 mi (6,732.41 km) |
| Middleburg to Murtosa | 4,073.92 mi (6,556.34 km) |
| Middleburg to Nazare | 4,071.90 mi (6,553.09 km) |
| Middleburg to Nelas | 4,117.46 mi (6,626.42 km) |
| Middleburg to Obidos | 4,071.58 mi (6,552.57 km) |
| Middleburg to Odemira | 4,132.31 mi (6,650.31 km) |
| Middleburg to Odivelas | 4,080.82 mi (6,567.45 km) |
| Middleburg to Oeiras | 4,075.69 mi (6,559.18 km) |
| Middleburg to Olhao | 4,185.12 mi (6,735.31 km) |
| Middleburg to Oliveira de Azemeis | 4,080.06 mi (6,566.23 km) |
