| Gretz-Armainvilliers to Leopoldsburg | 198.78 mi (319.91 km) |
| Gretz-Armainvilliers to Lessines | 145.05 mi (233.44 km) |
| Gretz-Armainvilliers to Leuven | 172.00 mi (276.81 km) |
| Gretz-Armainvilliers to Lichtervelde | 159.37 mi (256.48 km) |
| Gretz-Armainvilliers to Liedekerke | 158.70 mi (255.41 km) |
| Gretz-Armainvilliers to Liege | 182.41 mi (293.55 km) |
| Gretz-Armainvilliers to Lierre | 184.27 mi (296.55 km) |
| Gretz-Armainvilliers to Lille | 195.80 mi (315.11 km) |
| Gretz-Armainvilliers to Lint | 181.63 mi (292.30 km) |
| Gretz-Armainvilliers to Lochristi | 170.15 mi (273.84 km) |
| Gretz-Armainvilliers to Lokeren | 172.19 mi (277.11 km) |
| Gretz-Armainvilliers to Lommel | 206.88 mi (332.95 km) |
| Gretz-Armainvilliers to Londerzeel | 170.93 mi (275.09 km) |
| Gretz-Armainvilliers to Louvain-la-Neuve | 154.67 mi (248.92 km) |
| Gretz-Armainvilliers to Lovendegem | 167.47 mi (269.52 km) |
