| Niksar to Senftenberg | 1,325.83 mi (2,133.72 km) |
| Niksar to Siegburg | 1,585.89 mi (2,552.25 km) |
| Niksar to Siegen | 1,553.23 mi (2,499.68 km) |
| Niksar to Sigmaringen | 1,456.40 mi (2,343.84 km) |
| Niksar to Simbach am Inn | 1,288.53 mi (2,073.69 km) |
| Niksar to Simmerath | 1,620.91 mi (2,608.60 km) |
| Niksar to Sindelfingen | 1,474.41 mi (2,372.83 km) |
| Niksar to Sinsheim | 1,487.70 mi (2,394.22 km) |
| Niksar to Sinzheim | 1,512.40 mi (2,433.98 km) |
| Niksar to Sinzig | 1,579.43 mi (2,541.85 km) |
| Niksar to Soest | 1,563.14 mi (2,515.64 km) |
| Niksar to Solingen | 1,597.58 mi (2,571.06 km) |
| Niksar to Soltau | 1,528.81 mi (2,460.39 km) |
| Niksar to Sommerda | 1,431.30 mi (2,303.46 km) |
| Niksar to Sondershausen | 1,446.42 mi (2,327.79 km) |
