| Robertsville to Montalegre | 3,374.72 mi (5,431.08 km) |
| Robertsville to Montemor-o-Novo | 3,439.71 mi (5,535.68 km) |
| Robertsville to Montemor-o-Velho | 3,375.12 mi (5,431.73 km) |
| Robertsville to Montijo | 3,405.11 mi (5,479.99 km) |
| Robertsville to Mortagua | 3,389.86 mi (5,455.45 km) |
| Robertsville to Moura | 3,492.30 mi (5,620.31 km) |
| Robertsville to Murtosa | 3,362.52 mi (5,411.46 km) |
| Robertsville to Nazare | 3,371.66 mi (5,426.17 km) |
| Robertsville to Nelas | 3,406.20 mi (5,481.74 km) |
| Robertsville to Obidos | 3,373.78 mi (5,429.57 km) |
| Robertsville to Odemira | 3,449.66 mi (5,551.70 km) |
| Robertsville to Odivelas | 3,388.33 mi (5,452.99 km) |
| Robertsville to Oeiras | 3,384.55 mi (5,446.90 km) |
| Robertsville to Olhao | 3,505.45 mi (5,641.48 km) |
| Robertsville to Oliveira de Azemeis | 3,367.38 mi (5,419.28 km) |
