| Gretna to Lubbeek | 4,844.11 mi (7,795.83 km) |
| Gretna to Lummen | 4,855.65 mi (7,814.41 km) |
| Gretna to Maaseik | 4,875.65 mi (7,846.60 km) |
| Gretna to Machelen | 4,827.11 mi (7,768.49 km) |
| Gretna to Maldegem | 4,779.19 mi (7,691.36 km) |
| Gretna to Malmedy | 4,904.18 mi (7,892.51 km) |
| Gretna to Manage | 4,830.00 mi (7,773.14 km) |
| Gretna to Marche-en-Famenne | 4,882.28 mi (7,857.27 km) |
| Gretna to Mariakerke | 4,792.27 mi (7,712.41 km) |
| Gretna to Mechelen | 4,825.70 mi (7,766.21 km) |
| Gretna to Mechelen-aan-de-Maas | 4,875.29 mi (7,846.02 km) |
| Gretna to Meerhout | 4,846.87 mi (7,800.29 km) |
| Gretna to Meise | 4,822.35 mi (7,760.82 km) |
| Gretna to Melle | 4,799.16 mi (7,723.51 km) |
| Gretna to Melsele | 4,812.55 mi (7,745.05 km) |
