| Greenock to Miranda de Ebro | 920.26 mi (1,481.02 km) |
| Greenock to Mislata | 1,155.56 mi (1,859.69 km) |
| Greenock to Moana | 960.91 mi (1,546.44 km) |
| Greenock to Moguer | 1,293.94 mi (2,082.40 km) |
| Greenock to Molina de Segura | 1,247.30 mi (2,007.34 km) |
| Greenock to Molins de Rey | 1,049.67 mi (1,689.29 km) |
| Greenock to Mollerusa | 1,021.46 mi (1,643.88 km) |
| Greenock to Mollet | 1,044.14 mi (1,680.37 km) |
| Greenock to Moncada | 1,047.09 mi (1,685.13 km) |
| Greenock to Moncada | 1,150.89 mi (1,852.18 km) |
| Greenock to Monforte de Lemos | 936.24 mi (1,506.74 km) |
| Greenock to Monforte del Cid | 1,228.21 mi (1,976.61 km) |
| Greenock to Mongat | 1,049.65 mi (1,689.26 km) |
| Greenock to Monovar | 1,223.51 mi (1,969.05 km) |
| Greenock to Monserrat | 1,162.15 mi (1,870.30 km) |
