| Kalkar to Sangeorz-Bai | 874.82 mi (1,407.89 km) |
| Kalkar to Sannicolau Mare | 757.51 mi (1,219.10 km) |
| Kalkar to Santana | 780.80 mi (1,256.58 km) |
| Kalkar to Satu Mare | 787.26 mi (1,266.96 km) |
| Kalkar to Scobinti | 968.91 mi (1,559.32 km) |
| Kalkar to Scornicesti | 972.55 mi (1,565.17 km) |
| Kalkar to Sebes | 878.22 mi (1,413.36 km) |
| Kalkar to Seini | 805.00 mi (1,295.51 km) |
| Kalkar to Sfantu-Gheorghe | 971.72 mi (1,563.84 km) |
| Kalkar to Sibiu | 907.96 mi (1,461.21 km) |
| Kalkar to Sighetu Marmatiei | 824.93 mi (1,327.60 km) |
| Kalkar to Sighisoara | 918.22 mi (1,477.74 km) |
| Kalkar to Simeria | 860.07 mi (1,384.14 km) |
| Kalkar to Sinaia | 981.29 mi (1,579.23 km) |
| Kalkar to Slatina | 971.17 mi (1,562.94 km) |
