| Mersch to Lagoa | 1,767.18 mi (2,844.01 km) |
| Mersch to Lagos | 1,141.67 mi (1,837.34 km) |
| Mersch to Lamego | 898.58 mi (1,446.12 km) |
| Mersch to Leiria | 1,002.53 mi (1,613.42 km) |
| Mersch to Lisbon | 1,068.51 mi (1,719.60 km) |
| Mersch to Loule | 1,117.79 mi (1,798.91 km) |
| Mersch to Loures | 1,063.34 mi (1,711.29 km) |
| Mersch to Lourinha | 1,046.95 mi (1,684.91 km) |
| Mersch to Lousa | 964.35 mi (1,551.98 km) |
| Mersch to Lousada | 904.34 mi (1,455.40 km) |
| Mersch to Macedo de Cavaleiros | 846.27 mi (1,361.95 km) |
| Mersch to Mafamude | 926.73 mi (1,491.43 km) |
| Mersch to Mafra | 1,063.37 mi (1,711.33 km) |
| Mersch to Maia | 921.47 mi (1,482.95 km) |
| Mersch to Mangualde | 921.98 mi (1,483.79 km) |
