| Round Rock to Lagoa | 4,945.41 mi (7,958.87 km) |
| Round Rock to Lagoa | 4,051.11 mi (6,519.63 km) |
| Round Rock to Lagos | 4,935.14 mi (7,942.35 km) |
| Round Rock to Lamego | 4,863.68 mi (7,827.34 km) |
| Round Rock to Leiria | 4,853.76 mi (7,811.37 km) |
| Round Rock to Lisbon | 4,865.27 mi (7,829.90 km) |
| Round Rock to Loule | 4,967.40 mi (7,994.27 km) |
| Round Rock to Loures | 4,861.43 mi (7,823.71 km) |
| Round Rock to Lourinha | 4,843.73 mi (7,795.23 km) |
| Round Rock to Lousa | 4,870.42 mi (7,838.18 km) |
| Round Rock to Lousada | 4,837.68 mi (7,785.49 km) |
| Round Rock to Macedo de Cavaleiros | 4,891.59 mi (7,872.26 km) |
| Round Rock to Mafamude | 4,825.44 mi (7,765.80 km) |
| Round Rock to Mafra | 4,850.29 mi (7,805.79 km) |
| Round Rock to Maia | 4,821.57 mi (7,759.57 km) |
