| Kalkar to Somma Lombardo | 432.49 mi (696.03 km) |
| Kalkar to Somma Vesuviana | 844.23 mi (1,358.66 km) |
| Kalkar to Sommacampagna | 484.78 mi (780.18 km) |
| Kalkar to Sona | 482.35 mi (776.26 km) |
| Kalkar to Sondrio | 417.50 mi (671.90 km) |
| Kalkar to Sora | 773.56 mi (1,244.93 km) |
| Kalkar to Sorbolo | 512.91 mi (825.45 km) |
| Kalkar to Soresina | 474.58 mi (763.77 km) |
| Kalkar to Sorisole | 441.96 mi (711.26 km) |
| Kalkar to Sorrento | 858.30 mi (1,381.30 km) |
| Kalkar to Sorso | 763.66 mi (1,228.99 km) |
| Kalkar to Sortino | 1,093.39 mi (1,759.63 km) |
| Kalkar to Soverato Marina | 1,028.73 mi (1,655.58 km) |
| Kalkar to Sovicille | 627.72 mi (1,010.21 km) |
| Kalkar to Spello | 673.65 mi (1,084.14 km) |
