| Richmond Heights to Montalegre | 3,677.01 mi (5,917.58 km) |
| Richmond Heights to Montemor-o-Novo | 3,757.37 mi (6,046.90 km) |
| Richmond Heights to Montemor-o-Velho | 3,686.76 mi (5,933.27 km) |
| Richmond Heights to Montijo | 3,723.75 mi (5,992.80 km) |
| Richmond Heights to Mortagua | 3,699.52 mi (5,953.81 km) |
| Richmond Heights to Moura | 3,810.88 mi (6,133.03 km) |
| Richmond Heights to Murtosa | 3,671.44 mi (5,908.61 km) |
| Richmond Heights to Nazare | 3,686.52 mi (5,932.88 km) |
| Richmond Heights to Nelas | 3,714.84 mi (5,978.46 km) |
| Richmond Heights to Obidos | 3,689.87 mi (5,938.27 km) |
| Richmond Heights to Odemira | 3,772.54 mi (6,071.31 km) |
| Richmond Heights to Odivelas | 3,706.97 mi (5,965.79 km) |
| Richmond Heights to Oeiras | 3,703.87 mi (5,960.81 km) |
| Richmond Heights to Olhao | 3,829.29 mi (6,162.64 km) |
| Richmond Heights to Oliveira de Azemeis | 3,675.53 mi (5,915.20 km) |
