| Mersch to Setubal | 1,070.50 mi (1,722.80 km) |
| Mersch to Sever do Vouga | 937.01 mi (1,507.97 km) |
| Mersch to Silves | 1,129.48 mi (1,817.73 km) |
| Mersch to Sines | 1,100.53 mi (1,771.14 km) |
| Mersch to Sintra | 1,072.82 mi (1,726.53 km) |
| Mersch to Sobrado de Paiva | 918.44 mi (1,478.09 km) |
| Mersch to Sobral de Monte Agraco | 1,053.07 mi (1,694.75 km) |
| Mersch to Soure | 981.19 mi (1,579.08 km) |
| Mersch to Tabua | 943.93 mi (1,519.11 km) |
| Mersch to Tavira | 1,108.89 mi (1,784.59 km) |
| Mersch to Tomar | 996.97 mi (1,604.47 km) |
| Mersch to Tondela | 937.83 mi (1,509.29 km) |
| Mersch to Torre de Moncorvo | 869.48 mi (1,399.29 km) |
| Mersch to Torres Novas | 1,008.01 mi (1,622.23 km) |
| Mersch to Torres Vedras | 1,053.63 mi (1,695.65 km) |
