| Gebze to Sangeorgiu de Mures | 468.22 mi (753.52 km) |
| Gebze to Sangeorz-Bai | 511.34 mi (822.92 km) |
| Gebze to Sannicolau Mare | 572.23 mi (920.92 km) |
| Gebze to Santana | 551.51 mi (887.57 km) |
| Gebze to Satu Mare | 580.87 mi (934.82 km) |
| Gebze to Scobinti | 471.41 mi (758.66 km) |
| Gebze to Scornicesti | 359.54 mi (578.63 km) |
| Gebze to Sebes | 462.12 mi (743.71 km) |
| Gebze to Seini | 567.87 mi (913.89 km) |
| Gebze to Sfantu-Gheorghe | 394.83 mi (635.42 km) |
| Gebze to Sibiu | 435.15 mi (700.30 km) |
| Gebze to Sighetu Marmatiei | 563.11 mi (906.24 km) |
| Gebze to Sighisoara | 440.49 mi (708.90 km) |
| Gebze to Simeria | 475.06 mi (764.54 km) |
| Gebze to Sinaia | 370.32 mi (595.97 km) |
