| Karlovo to Somma Lombardo | 823.92 mi (1,325.97 km) |
| Karlovo to Somma Vesuviana | 547.94 mi (881.82 km) |
| Karlovo to Sommacampagna | 718.07 mi (1,155.62 km) |
| Karlovo to Sona | 719.29 mi (1,157.58 km) |
| Karlovo to Sondrio | 775.10 mi (1,247.41 km) |
| Karlovo to Sora | 576.10 mi (927.14 km) |
| Karlovo to Sorbolo | 731.64 mi (1,177.47 km) |
| Karlovo to Soresina | 764.35 mi (1,230.10 km) |
| Karlovo to Sorisole | 779.08 mi (1,253.81 km) |
| Karlovo to Sorrento | 556.08 mi (894.93 km) |
| Karlovo to Sorso | 845.30 mi (1,360.38 km) |
| Karlovo to Sortino | 640.83 mi (1,031.31 km) |
| Karlovo to Soverato Marina | 511.65 mi (823.42 km) |
| Karlovo to Sovicille | 686.98 mi (1,105.59 km) |
| Karlovo to Spello | 614.96 mi (989.68 km) |
