| Grimsby to Montalegre | 885.94 mi (1,425.78 km) |
| Grimsby to Montemor-o-Novo | 1,100.21 mi (1,770.62 km) |
| Grimsby to Montemor-o-Velho | 1,009.44 mi (1,624.53 km) |
| Grimsby to Montijo | 1,109.75 mi (1,785.96 km) |
| Grimsby to Mortagua | 983.93 mi (1,583.48 km) |
| Grimsby to Moura | 1,122.37 mi (1,806.29 km) |
| Grimsby to Murtosa | 971.94 mi (1,564.19 km) |
| Grimsby to Nazare | 1,053.25 mi (1,695.03 km) |
| Grimsby to Nelas | 971.72 mi (1,563.84 km) |
| Grimsby to Obidos | 1,070.60 mi (1,722.96 km) |
| Grimsby to Odemira | 1,177.31 mi (1,894.70 km) |
| Grimsby to Odivelas | 1,107.82 mi (1,782.87 km) |
| Grimsby to Oeiras | 1,117.29 mi (1,798.11 km) |
| Grimsby to Olhao | 1,201.82 mi (1,934.14 km) |
| Grimsby to Oliveira de Azemeis | 962.07 mi (1,548.30 km) |
