| Potomac to Luban | 4,286.32 mi (6,898.16 km) |
| Potomac to Lubartow | 4,545.61 mi (7,315.45 km) |
| Potomac to Lubawa | 4,369.88 mi (7,032.65 km) |
| Potomac to Lubin | 4,311.51 mi (6,938.71 km) |
| Potomac to Lublin | 4,552.54 mi (7,326.61 km) |
| Potomac to Lubliniec | 4,429.72 mi (7,128.94 km) |
| Potomac to Lubon | 4,305.83 mi (6,929.57 km) |
| Potomac to Lubsko | 4,251.81 mi (6,842.63 km) |
| Potomac to Lukow | 4,520.59 mi (7,275.18 km) |
| Potomac to Lwowek Slaski | 4,297.58 mi (6,916.28 km) |
| Potomac to Makow Mazowiecki | 4,440.31 mi (7,145.98 km) |
| Potomac to Malbork | 4,326.14 mi (6,962.25 km) |
| Potomac to Marki | 4,459.57 mi (7,176.98 km) |
| Potomac to Miastko | 4,253.84 mi (6,845.90 km) |
| Potomac to Miechow | 4,492.05 mi (7,229.26 km) |
