| Barstow to Montalegre | 5,503.67 mi (8,857.31 km) |
| Barstow to Montemor-o-Novo | 5,621.48 mi (9,046.90 km) |
| Barstow to Montemor-o-Velho | 5,537.33 mi (8,911.46 km) |
| Barstow to Montijo | 5,591.03 mi (8,997.90 km) |
| Barstow to Mortagua | 5,544.73 mi (8,923.38 km) |
| Barstow to Moura | 5,676.20 mi (9,134.96 km) |
| Barstow to Murtosa | 5,515.43 mi (8,876.23 km) |
| Barstow to Nazare | 5,545.19 mi (8,924.13 km) |
| Barstow to Nelas | 5,557.03 mi (8,943.17 km) |
| Barstow to Obidos | 5,551.55 mi (8,934.36 km) |
| Barstow to Odemira | 5,649.24 mi (9,091.58 km) |
| Barstow to Odivelas | 5,574.59 mi (8,971.44 km) |
| Barstow to Oeiras | 5,573.26 mi (8,969.30 km) |
| Barstow to Olhao | 5,707.28 mi (9,184.98 km) |
| Barstow to Oliveira de Azemeis | 5,517.47 mi (8,879.50 km) |
