| Kalkar to Roding | 324.94 mi (522.94 km) |
| Kalkar to Rodinghausen | 99.72 mi (160.48 km) |
| Kalkar to Roetgen | 75.34 mi (121.25 km) |
| Kalkar to Rommerskirchen | 51.61 mi (83.05 km) |
| Kalkar to Ronnenberg | 148.47 mi (238.94 km) |
| Kalkar to Rosbach vor der Hohe | 144.41 mi (232.40 km) |
| Kalkar to Rosdorf | 155.62 mi (250.44 km) |
| Kalkar to Rosenheim | 374.02 mi (601.93 km) |
| Kalkar to Rosrath | 69.56 mi (111.95 km) |
| Kalkar to Rossdorf | 168.66 mi (271.44 km) |
| Kalkar to Rosstal | 258.18 mi (415.51 km) |
| Kalkar to Rostock | 292.20 mi (470.25 km) |
| Kalkar to Rotenburg an der Fulda | 156.80 mi (252.35 km) |
| Kalkar to Roth | 272.22 mi (438.09 km) |
| Kalkar to Rothenbach an der Pegnitz | 267.22 mi (430.04 km) |
