| Kastamonu to Senftenberg | 1,166.71 mi (1,877.63 km) |
| Kastamonu to Siegburg | 1,419.41 mi (2,284.31 km) |
| Kastamonu to Siegen | 1,387.33 mi (2,232.69 km) |
| Kastamonu to Sigmaringen | 1,284.76 mi (2,067.62 km) |
| Kastamonu to Simbach am Inn | 1,118.55 mi (1,800.13 km) |
| Kastamonu to Simmerath | 1,453.57 mi (2,339.29 km) |
| Kastamonu to Sindelfingen | 1,303.89 mi (2,098.41 km) |
| Kastamonu to Sinsheim | 1,318.27 mi (2,121.55 km) |
| Kastamonu to Sinzheim | 1,341.75 mi (2,159.34 km) |
| Kastamonu to Sinzig | 1,412.34 mi (2,272.94 km) |
| Kastamonu to Soest | 1,399.15 mi (2,251.71 km) |
| Kastamonu to Solingen | 1,431.96 mi (2,304.51 km) |
| Kastamonu to Soltau | 1,370.44 mi (2,205.51 km) |
| Kastamonu to Sommerda | 1,268.16 mi (2,040.91 km) |
| Kastamonu to Sondershausen | 1,283.72 mi (2,065.95 km) |
