| Grefrath to Siegburg | 52.65 mi (84.73 km) |
| Grefrath to Siegen | 79.15 mi (127.38 km) |
| Grefrath to Sigmaringen | 258.64 mi (416.24 km) |
| Grefrath to Simbach am Inn | 365.30 mi (587.90 km) |
| Grefrath to Simmerath | 50.90 mi (81.92 km) |
| Grefrath to Sindelfingen | 216.32 mi (348.13 km) |
| Grefrath to Sinsheim | 182.66 mi (293.97 km) |
| Grefrath to Sinzheim | 195.44 mi (314.53 km) |
| Grefrath to Sinzig | 67.53 mi (108.68 km) |
| Grefrath to Soest | 77.85 mi (125.28 km) |
| Grefrath to Solingen | 34.18 mi (55.01 km) |
| Grefrath to Soltau | 186.68 mi (300.44 km) |
| Grefrath to Sommerda | 206.87 mi (332.93 km) |
| Grefrath to Sondershausen | 195.28 mi (314.27 km) |
| Grefrath to Sonneberg | 221.25 mi (356.07 km) |
