| Kocaeli to Sestu | 1,103.79 mi (1,776.38 km) |
| Kocaeli to Settimo Torinese | 1,156.16 mi (1,860.66 km) |
| Kocaeli to Seveso | 1,095.89 mi (1,763.67 km) |
| Kocaeli to Sezze | 877.03 mi (1,411.44 km) |
| Kocaeli to Siano | 795.43 mi (1,280.12 km) |
| Kocaeli to Siena | 967.81 mi (1,557.54 km) |
| Kocaeli to Signa | 982.13 mi (1,580.59 km) |
| Kocaeli to Silea | 947.12 mi (1,524.24 km) |
| Kocaeli to Silvi Paese | 823.73 mi (1,325.67 km) |
| Kocaeli to Sinalunga | 947.14 mi (1,524.27 km) |
| Kocaeli to Siniscola | 1,057.46 mi (1,701.81 km) |
| Kocaeli to Sinnai | 1,097.92 mi (1,766.94 km) |
| Kocaeli to Siracusa | 825.67 mi (1,328.79 km) |
| Kocaeli to Solaro | 1,098.08 mi (1,767.19 km) |
| Kocaeli to Soliera | 999.40 mi (1,608.37 km) |
