| Harpenden to Senftenberg | 615.12 mi (989.94 km) |
| Harpenden to Siegburg | 333.69 mi (537.02 km) |
| Harpenden to Siegen | 366.66 mi (590.08 km) |
| Harpenden to Sigmaringen | 496.82 mi (799.55 km) |
| Harpenden to Simbach am Inn | 640.77 mi (1,031.21 km) |
| Harpenden to Simmerath | 299.85 mi (482.57 km) |
| Harpenden to Sindelfingen | 465.06 mi (748.44 km) |
| Harpenden to Sinsheim | 442.30 mi (711.81 km) |
| Harpenden to Sinzheim | 430.90 mi (693.46 km) |
| Harpenden to Sinzig | 340.70 mi (548.31 km) |
| Harpenden to Soest | 362.59 mi (583.53 km) |
| Harpenden to Solingen | 322.88 mi (519.62 km) |
| Harpenden to Soltau | 436.49 mi (702.46 km) |
| Harpenden to Sommerda | 494.98 mi (796.60 km) |
| Harpenden to Sondershausen | 482.10 mi (775.87 km) |
