| Gretna to Leopoldsburg | 4,854.19 mi (7,812.06 km) |
| Gretna to Lessines | 4,808.03 mi (7,737.77 km) |
| Gretna to Leuven | 4,838.40 mi (7,786.65 km) |
| Gretna to Lichtervelde | 4,771.48 mi (7,678.96 km) |
| Gretna to Liedekerke | 4,814.10 mi (7,747.54 km) |
| Gretna to Liege | 4,880.00 mi (7,853.61 km) |
| Gretna to Lierre | 4,826.29 mi (7,767.16 km) |
| Gretna to Lille | 4,834.20 mi (7,779.89 km) |
| Gretna to Lint | 4,823.41 mi (7,762.52 km) |
| Gretna to Lochristi | 4,797.85 mi (7,721.39 km) |
| Gretna to Lokeren | 4,803.86 mi (7,731.07 km) |
| Gretna to Lommel | 4,853.40 mi (7,810.79 km) |
| Gretna to Londerzeel | 4,819.22 mi (7,755.78 km) |
| Gretna to Louvain-la-Neuve | 4,836.25 mi (7,783.20 km) |
| Gretna to Lovendegem | 4,788.50 mi (7,706.34 km) |
