| Carlow to Setubal | 992.89 mi (1,597.91 km) |
| Carlow to Sever do Vouga | 838.55 mi (1,349.52 km) |
| Carlow to Silves | 1,083.32 mi (1,743.43 km) |
| Carlow to Sines | 1,032.00 mi (1,660.84 km) |
| Carlow to Sintra | 976.52 mi (1,571.55 km) |
| Carlow to Sobrado de Paiva | 817.51 mi (1,315.65 km) |
| Carlow to Sobral de Monte Agraco | 960.18 mi (1,545.27 km) |
| Carlow to Soure | 886.70 mi (1,427.00 km) |
| Carlow to Tabua | 863.16 mi (1,389.12 km) |
| Carlow to Tavira | 1,086.28 mi (1,748.20 km) |
| Carlow to Tomar | 916.85 mi (1,475.52 km) |
| Carlow to Tondela | 852.53 mi (1,372.01 km) |
| Carlow to Torre de Moncorvo | 803.65 mi (1,293.35 km) |
| Carlow to Torres Novas | 926.47 mi (1,491.01 km) |
| Carlow to Torres Vedras | 956.31 mi (1,539.03 km) |
