| Kalkar to Rybnik | 545.41 mi (877.76 km) |
| Kalkar to Ryki | 668.74 mi (1,076.23 km) |
| Kalkar to Rypin | 561.35 mi (903.41 km) |
| Kalkar to Rzeszow | 693.32 mi (1,115.79 km) |
| Kalkar to Sandomierz | 671.74 mi (1,081.06 km) |
| Kalkar to Sanok | 712.37 mi (1,146.44 km) |
| Kalkar to Sedziszow Malopolski | 679.88 mi (1,094.17 km) |
| Kalkar to Sepolno Krajenskie | 485.67 mi (781.61 km) |
| Kalkar to Sidlice | 541.90 mi (872.10 km) |
| Kalkar to Siechnice | 470.32 mi (756.91 km) |
| Kalkar to Siedlce | 679.70 mi (1,093.87 km) |
| Kalkar to Siemianowice Slaskie | 560.27 mi (901.67 km) |
| Kalkar to Siemiatycze | 703.60 mi (1,132.34 km) |
| Kalkar to Sieradz | 533.26 mi (858.20 km) |
| Kalkar to Sierpc | 569.60 mi (916.69 km) |
