| Popovo to Siegburg | 1,028.49 mi (1,655.19 km) |
| Popovo to Siegen | 998.24 mi (1,606.51 km) |
| Popovo to Sigmaringen | 881.38 mi (1,418.45 km) |
| Popovo to Simbach am Inn | 720.16 mi (1,158.98 km) |
| Popovo to Simmerath | 1,060.20 mi (1,706.23 km) |
| Popovo to Sindelfingen | 903.15 mi (1,453.48 km) |
| Popovo to Sinsheim | 920.20 mi (1,480.92 km) |
| Popovo to Sinzheim | 940.53 mi (1,513.64 km) |
| Popovo to Sinzig | 1,019.87 mi (1,641.32 km) |
| Popovo to Soest | 1,015.18 mi (1,633.78 km) |
| Popovo to Solingen | 1,043.26 mi (1,678.97 km) |
| Popovo to Soltau | 1,002.81 mi (1,613.87 km) |
| Popovo to Sommerda | 888.12 mi (1,429.29 km) |
| Popovo to Sondershausen | 904.75 mi (1,456.06 km) |
| Popovo to Sonneberg | 858.17 mi (1,381.09 km) |
