| Gretna to Massarosa | 5,287.85 mi (8,509.98 km) |
| Gretna to Matelica | 5,425.16 mi (8,730.96 km) |
| Gretna to Matera | 5,676.17 mi (9,134.92 km) |
| Gretna to Matino | 5,767.65 mi (9,282.13 km) |
| Gretna to Mazzarino | 5,692.62 mi (9,161.38 km) |
| Gretna to Meda | 5,178.66 mi (8,334.25 km) |
| Gretna to Medesano | 5,249.96 mi (8,449.00 km) |
| Gretna to Medicina | 5,323.44 mi (8,567.25 km) |
| Gretna to Meldola | 5,353.30 mi (8,615.30 km) |
| Gretna to Melegnano | 5,195.29 mi (8,361.01 km) |
| Gretna to Melendugno | 5,767.37 mi (9,281.68 km) |
| Gretna to Melfi | 5,621.94 mi (9,047.65 km) |
| Gretna to Melilli | 5,739.54 mi (9,236.90 km) |
| Gretna to Melito di Napoli | 5,562.32 mi (8,951.69 km) |
| Gretna to Melito di Porto Salvo | 5,742.88 mi (9,242.27 km) |
