| Shoreline to Miranda de Ebro | 5,180.43 mi (8,337.09 km) |
| Shoreline to Mislata | 5,436.61 mi (8,749.38 km) |
| Shoreline to Moana | 5,016.33 mi (8,073.01 km) |
| Shoreline to Moguer | 5,348.37 mi (8,607.37 km) |
| Shoreline to Molina de Segura | 5,491.22 mi (8,837.27 km) |
| Shoreline to Molins de Rey | 5,400.43 mi (8,691.14 km) |
| Shoreline to Mollerusa | 5,354.97 mi (8,618.00 km) |
| Shoreline to Mollet | 5,399.21 mi (8,689.19 km) |
| Shoreline to Moncada | 5,401.33 mi (8,692.60 km) |
| Shoreline to Moncada | 5,433.27 mi (8,744.00 km) |
| Shoreline to Monforte de Lemos | 5,044.39 mi (8,118.16 km) |
| Shoreline to Monforte del Cid | 5,488.33 mi (8,832.61 km) |
| Shoreline to Mongat | 5,405.13 mi (8,698.72 km) |
| Shoreline to Monovar | 5,481.69 mi (8,821.92 km) |
| Shoreline to Monserrat | 5,437.38 mi (8,750.62 km) |
