| North Potomac to Leopoldsburg | 3,891.42 mi (6,262.63 km) |
| North Potomac to Lessines | 3,844.39 mi (6,186.94 km) |
| North Potomac to Leuven | 3,875.18 mi (6,236.49 km) |
| North Potomac to Lichtervelde | 3,807.98 mi (6,128.36 km) |
| North Potomac to Liedekerke | 3,850.68 mi (6,197.07 km) |
| North Potomac to Liege | 3,916.77 mi (6,303.43 km) |
| North Potomac to Lierre | 3,863.32 mi (6,217.41 km) |
| North Potomac to Lille | 3,871.43 mi (6,230.47 km) |
| North Potomac to Lint | 3,860.39 mi (6,212.70 km) |
| North Potomac to Lochristi | 3,834.62 mi (6,171.22 km) |
| North Potomac to Lokeren | 3,840.67 mi (6,180.97 km) |
| North Potomac to Lommel | 3,890.80 mi (6,261.63 km) |
| North Potomac to Londerzeel | 3,856.01 mi (6,205.65 km) |
| North Potomac to Louvain-la-Neuve | 3,872.74 mi (6,232.57 km) |
| North Potomac to Lovendegem | 3,825.20 mi (6,156.06 km) |
