| Troisdorf to Senftenberg | 301.06 mi (484.51 km) |
| Troisdorf to Siegburg | 2.36 mi (3.80 km) |
| Troisdorf to Siegen | 37.85 mi (60.91 km) |
| Troisdorf to Sigmaringen | 210.06 mi (338.05 km) |
| Troisdorf to Simbach am Inn | 316.21 mi (508.89 km) |
| Troisdorf to Simmerath | 40.32 mi (64.88 km) |
| Troisdorf to Sindelfingen | 167.04 mi (268.82 km) |
| Troisdorf to Sinsheim | 132.61 mi (213.42 km) |
| Troisdorf to Sinzheim | 148.92 mi (239.67 km) |
| Troisdorf to Sinzig | 19.18 mi (30.87 km) |
| Troisdorf to Soest | 66.53 mi (107.07 km) |
| Troisdorf to Solingen | 24.43 mi (39.31 km) |
| Troisdorf to Soltau | 188.26 mi (302.98 km) |
| Troisdorf to Sommerda | 173.91 mi (279.88 km) |
| Troisdorf to Sondershausen | 165.46 mi (266.28 km) |
