| Grangemouth to Montalegre | 997.22 mi (1,604.87 km) |
| Grangemouth to Montemor-o-Novo | 1,217.32 mi (1,959.09 km) |
| Grangemouth to Montemor-o-Velho | 1,117.82 mi (1,798.96 km) |
| Grangemouth to Montijo | 1,220.79 mi (1,964.67 km) |
| Grangemouth to Mortagua | 1,095.69 mi (1,763.34 km) |
| Grangemouth to Moura | 1,247.27 mi (2,007.29 km) |
| Grangemouth to Murtosa | 1,078.82 mi (1,736.19 km) |
| Grangemouth to Nazare | 1,159.96 mi (1,866.77 km) |
| Grangemouth to Nelas | 1,086.88 mi (1,749.16 km) |
| Grangemouth to Obidos | 1,177.27 mi (1,894.64 km) |
| Grangemouth to Odemira | 1,293.55 mi (2,081.77 km) |
| Grangemouth to Odivelas | 1,216.08 mi (1,957.10 km) |
| Grangemouth to Oeiras | 1,224.67 mi (1,970.92 km) |
| Grangemouth to Olhao | 1,325.79 mi (2,133.66 km) |
| Grangemouth to Oliveira de Azemeis | 1,070.11 mi (1,722.17 km) |
